fix CSS
· 11 months ago
eaaaa33ed995c6c23a0c3f6329ba4d54ce533ca4
Parent:
eee5c7f73
1 file changed +1383 −3393
- bitcoin-wallet.html +1383 −3393
Diff
--- a/bitcoin-wallet.html +++ b/bitcoin-wallet.html @@ -1,3402 +1,1392 @@ <!DOCTYPE html> + <html itemscope="" itemtype="http://schema.org/TechArticle" lang="en"> - <head> - <meta charset="utf-8"/> - <meta content="width=device-width, initial-scale=1.0" name="viewport"/> - <title> - Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide) - </title> - <meta content="Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)" itemprop="name"/> - <meta content="Understand Bitcoin wallets, secure your keys with hardware & cold storage, and practice safe self-custody. Covers basics, security, operations, hardware comparisons (Trezor, Coldcard, Ledger), and advanced concepts." itemprop="description"/> - <meta content="https://cheatsheets.davidveksler.com/images/bitcoin-og.png" itemprop="image"/> - <link href="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" itemprop="mainEntityOfPage"/> - <meta content="David Veksler" itemprop="author"/> - <meta content="2024-05-23" itemprop="dateModified"/> - <link href="data:image/svg+xml,<svg viewBox='0 0 100 100'><text y='.9em' font-size='90'>🔑</text></svg>" rel="icon"/> - <meta content="Understand Bitcoin wallets, secure your keys with hardware & cold storage, and practice safe self-custody. Covers basics, security, operations, hardware comparisons (Trezor, Coldcard, Ledger), and advanced concepts." name="description"/> - <link href="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" rel="canonical"/> - <meta content="Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)" property="og:title"/> - <meta content="Your guide to understanding Bitcoin wallets, securing your keys with hardware and cold storage, and practicing safe self-custody." property="og:description"/> - <meta content="website" property="og:type"/> - <meta content="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" property="og:url"/> - <meta content="images/bitcoin-og.png" property="og:image"/> - <meta content="images/bitcoin-og.png" name="twitter:image"/> - <meta content="summary_large_image" name="twitter:card"/> - </head> - <body> - <header class="page-header"> - <h1 class="display-5" itemprop="headline"> - <i class="bi bi-currency-bitcoin"> - </i> - Bitcoin Wallet Cheatsheet - </h1> - <p class="lead" itemprop="description"> - Your guide to understanding Bitcoin wallets, securing your keys with +<head> +<meta charset="utf-8"/> +<meta content="width=device-width, initial-scale=1.0" name="viewport"/> +<title>Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)</title> +<meta content="Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)" itemprop="name"/> +<meta content="Understand Bitcoin wallets, secure your keys with hardware & cold storage, and practice safe self-custody. Covers basics, security, operations, hardware comparisons (Trezor, Coldcard, Ledger), and advanced concepts." itemprop="description"/> +<meta content="https://cheatsheets.davidveksler.com/images/bitcoin-og.png" itemprop="image"/> +<link href="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" itemprop="mainEntityOfPage"/> +<meta content="David Veksler" itemprop="author"/> +<meta content="2024-05-23" itemprop="dateModified"/> +<link href="data:image/svg+xml,<svg viewBox='0 0 100 100'><text y='.9em' font-size='90'>🔑</text></svg>" rel="icon"/> +<meta content="Understand Bitcoin wallets, secure your keys with hardware & cold storage, and practice safe self-custody. Covers basics, security, operations, hardware comparisons (Trezor, Coldcard, Ledger), and advanced concepts." name="description"> +<link href="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" rel="canonical"> +<meta content="Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)" property="og:title"> +<meta content="Your guide to understanding Bitcoin wallets, securing your keys with hardware and cold storage, and practicing safe self-custody." property="og:description"> +<meta content="website" property="og:type"> +<meta content="https://cheatsheets.davidveksler.com/bitcoin-wallet.html" property="og:url"> +<meta content="https://cheatsheets.davidveksler.com/images/bitcoin-og.png" property="og:image"/> +<meta content="Cyberpunk styled diagram showing Bitcoin wallet concepts." property="og:image:alt"/> +<meta content="summary_large_image" name="twitter:card"/> +<meta content="Bitcoin Wallet Cheatsheet: Secure Your Crypto (Self-Custody Guide)" name="twitter:title"/> +<meta content="Your guide to understanding Bitcoin wallets, securing your keys with hardware and cold storage, and practicing safe self-custody." name="twitter:description"/> +<meta content="https://cheatsheets.davidveksler.com/images/bitcoin-og.png" name="twitter:image"/> +<meta content="Cyberpunk styled diagram showing Bitcoin wallet concepts." name="twitter:image:alt"/> +<meta content="@heroiclife" name="twitter:creator"/> +<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"> +<link href="https://cdn.jsdelivr.net/npm/[email protected]/font/bootstrap-icons.min.css" rel="stylesheet"/> +<link href="https://fonts.googleapis.com" rel="preconnect"/> +<link crossorigin="" href="https://fonts.gstatic.com" rel="preconnect"/> +<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&family=Fira+Code:wght@400;600&family=Orbitron:[email protected]&display=swap" rel="stylesheet"/> +<style> +@keyframes subtleDataStream{0%{background-position:0 0}100%{background-position:0 60px}}@keyframes pulseGlowIntense{0%{box-shadow:0 0 8px 1px var(--category-color-glow),0 4px 10px rgba(0,0,0,.4),inset 0 0 5px rgba(0,0,0,.2)}50%{box-shadow:0 0 20px 5px var(--category-color-glow),0 6px 15px rgba(0,0,0,.5),inset 0 0 10px rgba(0,0,0,.3)}100%{box-shadow:0 0 8px 1px var(--category-color-glow),0 4px 10px rgba(0,0,0,.4),inset 0 0 5px rgba(0,0,0,.2)}}@keyframes flowLineGradient{0%{background-position:-100% 0}100%{background-position:100% 0}}:root{--bg-main:#0a0c10;--bg-container:#11151c;--bg-card:#1c2128;--bg-card-content:#22272e;--text-primary:#d1d5db;--text-secondary:#9ca3af;--text-heading:#f0f6fc;--border-color:#373e47;--accent-primary:#6cb6ff;--accent-primary-dark:#58a6ff;--accent-primary-glow:rgba(108,182,255,.6);--critical-color:#ff7b72;--rule-border-color:var(--critical-color);--rule-bg-color:rgba(255,123,114,.15);--btc-orange:#f7931a;--btc-orange-glow:rgba(247,147,26,.7);--btc-orange-subtle-glow:rgba(247,147,26,.4);--btc-color-concept:#9ca3af;--btc-glow-concept:rgba(156,163,175,.5);--btc-color-hot:#ff7b72;--btc-glow-hot:rgba(255,123,114,.7);--btc-color-cold:#6cb6ff;--btc-glow-cold:rgba(108,182,255,.6);--btc-color-operations:#56d364;--btc-glow-operations:rgba(86,211,100,.6);--btc-color-security:#f778ba;--btc-glow-security:rgba(247,120,186,.6);--btc-color-advanced:#c39ac5;--btc-glow-advanced:rgba(195,154,197,.6);--btc-color-comparison:#79c0ff;--btc-glow-comparison:rgba(121,192,255,.6);--btc-color-pitfalls:#f7c85c;--btc-glow-pitfalls:rgba(247,200,92,.7);--btc-color-glossary:#8b949e;--btc-glow-glossary:rgba(139,148,158,.5);--btc-color-resources:#56d364;--btc-glow-resources:rgba(86,211,100,.6);--category-color:var(--btc-color-concept);--category-color-glow:var(--btc-glow-concept);color-scheme:dark}body{background-color:var(--bg-main);background-image:linear-gradient(0deg,rgba(13,17,23,0) 0%,rgba(88,166,255,.03) 50%,rgba(13,17,23,0) 100%),linear-gradient(90deg,rgba(48,54,61,.1) 1px,transparent 1px),linear-gradient(0deg,rgba(48,54,61,.1) 1px,transparent 1px);background-size:100% 60px,40px 40px,40px 40px;animation:subtleDataStream 4s linear infinite;color:var(--text-primary);font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;padding-bottom:3rem;font-size:15px;box-sizing:border-box;line-height:1.7}*,*::before,*::after{box-sizing:inherit}.page-header{background:linear-gradient(135deg,rgba(247,147,26,.08) 0%,transparent 30%),linear-gradient(225deg,rgba(247,147,26,.05) 0%,transparent 30%),linear-gradient(45deg,rgba(48,54,61,.1) 0%,transparent 50%),var(--bg-container);backdrop-filter:blur(2px);padding:3rem 1.5rem;text-align:center;border-bottom:1px solid var(--border-color);margin-bottom:3rem;position:relative;z-index:10;box-shadow:0 5px 25px rgba(0,0,0,.4),inset 0 0 15px rgba(0,0,0,.3);overflow:hidden}.page-header::before,.page-header::after{content:"";position:absolute;width:20px;height:20px;border-color:var(--btc-orange);border-style:solid;opacity:.7;filter:drop-shadow(0 0 4px var(--btc-orange-glow));transition:all .3s ease}.page-header::before{top:10px;left:10px;border-width:2px 0 0 2px;border-top-left-radius:5px}.page-header::after{bottom:10px;right:10px;border-width:0 2px 2px 0;border-bottom-right-radius:5px}.page-header:hover::before,.page-header:hover::after{width:25px;height:25px;opacity:1;filter:drop-shadow(0 0 8px var(--btc-orange-glow))}.page-header h1{color:var(--text-heading);font-weight:300;letter-spacing:1.5px;margin-bottom:.7rem;font-size:2.8rem;text-shadow:0 0 15px var(--btc-orange-glow),0 0 5px var(--btc-orange-subtle-glow)}.page-header h1 .bi.bi-currency-bitcoin{font-size:.9em;vertical-align:-.08em;margin-right:.4em;color:var(--btc-orange);filter:drop-shadow(0 0 8px var(--btc-orange-glow))}.page-header .lead{color:var(--text-secondary);font-size:1.15rem;max-width:800px;margin:.5rem auto 0 auto;text-shadow:0 1px 2px rgba(0,0,0,.5)}.schema-container{padding:0 1rem .5rem 1rem;margin-bottom:3rem;position:relative}.section-title{color:var(--category-color);margin:0 0 2rem 0;font-weight:500;text-transform:uppercase;letter-spacing:.12em;font-size:1rem;border-bottom:1px solid var(--border-color);padding:.5rem 0;display:block;position:relative;z-index:15;text-shadow:0 0 8px var(--category-color-glow)}.cat-concept > .section-title{--category-color:var(--btc-color-concept);--category-color-glow:var(--btc-glow-concept)}.cat-hot > .section-title{--category-color:var(--btc-color-hot);--category-color-glow:var(--btc-glow-hot)}.cat-cold > .section-title{--category-color:var(--btc-color-cold);--category-color-glow:var(--btc-glow-cold)}.cat-operations > .section-title{--category-color:var(--btc-color-operations);--category-color-glow:var(--btc-glow-operations)}.cat-security > .section-title{--category-color:var(--btc-color-security);--category-color-glow:var(--btc-glow-security)}.cat-advanced > .section-title{--category-color:var(--btc-color-advanced);--category-color-glow:var(--btc-glow-advanced)}.cat-comparison > .section-title{--category-color:var(--btc-color-comparison);--category-color-glow:var(--btc-glow-comparison)}.cat-pitfalls > .section-title{--category-color:var(--btc-color-pitfalls);--category-color-glow:var(--btc-glow-pitfalls)}.cat-glossary > .section-title{--category-color:var(--btc-color-glossary);--category-color-glow:var(--btc-glow-glossary)}.cat-resources > .section-title{--category-color:var(--btc-color-resources);--category-color-glow:var(--btc-glow-resources)}.info-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.3),inset 0 0 8px rgba(0,0,0,.2);height:100%;display:flex;flex-direction:column;transition:all .3s ease;position:relative;z-index:5;overflow:hidden;--category-color:inherit;--category-color-glow:inherit}.info-card.btc-type-concept{--category-color:var(--btc-color-concept);--category-color-glow:var(--btc-glow-concept)}.info-card.btc-type-intro{--category-color:var(--btc-orange);--category-color-glow:var(--btc-orange-glow)}.info-card.btc-type-software{--category-color:var(--btc-color-hot);--category-color-glow:var(--btc-glow-hot)}.info-card.btc-type-web{--category-color:var(--btc-color-hot);--category-color-glow:var(--btc-glow-hot);filter:brightness(.85)}.info-card.btc-type-hardware{--category-color:var(--btc-color-cold);--category-color-glow:var(--btc-glow-cold)}.info-card.btc-type-paper{--category-color:var(--btc-color-cold);--category-color-glow:var(--btc-glow-cold);filter:brightness(.85)}.info-card.btc-type-airgap{--category-color:var(--btc-color-cold);--category-color-glow:var(--btc-glow-cold)}.info-card.btc-type-operation{--category-color:var(--btc-color-operations);--category-color-glow:var(--btc-glow-operations)}.info-card.btc-type-security{--category-color:var(--btc-color-security);--category-color-glow:var(--btc-glow-security)}.info-card.btc-type-advanced{--category-color:var(--btc-color-advanced);--category-color-glow:var(--btc-glow-advanced)}.info-card.btc-type-comparison{--category-color:var(--btc-color-comparison);--category-color-glow:var(--btc-glow-comparison)}.info-card.btc-type-pitfall{--category-color:var(--btc-color-pitfalls);--category-color-glow:var(--btc-glow-pitfalls)}.info-card.btc-type-glossary{--category-color:var(--btc-color-glossary);--category-color-glow:var(--btc-glow-glossary)}.info-card.btc-type-resource{--category-color:var(--btc-color-resources);--category-color-glow:var(--btc-glow-resources)}.info-card::before{content:"";position:absolute;top:-1px;left:-1px;width:15px;height:15px;border-top:2px solid var(--category-color);border-left:2px solid var(--category-color);border-radius:6px 0 0 0;opacity:.6;transition:all .3s ease;filter:drop-shadow(0 0 3px var(--category-color-glow))}.info-card:hover::before{opacity:1;width:25px;height:25px;filter:drop-shadow(0 0 6px var(--category-color-glow))}.info-card:hover{transform:translateY(-4px) scale(1.01);z-index:20;animation:pulseGlowIntense 1.8s infinite ease-in-out}.info-card .card-body{padding:0;flex-grow:1;display:flex;flex-direction:column}.info-card h5{color:var(--text-heading);background:linear-gradient(135deg,var(--category-color) 0%,color-mix(in srgb,var(--category-color) 80%,black 20%) 100%);font-size:.85rem;text-align:center;margin:0;padding:.7rem .5rem;font-weight:600;display:flex;justify-content:center;align-items:center;gap:.6rem;font-family:"Orbitron","Fira Code",monospace;border-bottom:1px solid var(--border-color);border-radius:5px 5px 0 0;text-transform:uppercase;letter-spacing:1px;text-shadow:0 0 5px rgba(0,0,0,.6)}.info-card h5 .bi{font-size:1.2em;color:var(--text-heading);opacity:1;filter:drop-shadow(0 0 3px rgba(0,0,0,.6))}.card-content-wrapper{padding:1.1rem;flex-grow:1;display:flex;flex-direction:column}.info-card p.summary{font-size:.88rem;color:var(--text-secondary);margin-bottom:1rem;flex-grow:1;line-height:1.6}.collapse-content{font-size:.88rem;border-top:1px dashed var(--border-color);padding:1.2rem;margin:0;background-color:var(--bg-card-content);border-radius:0 0 5px 5px;color:var(--text-primary)}.collapse-content h6{font-weight:600;color:var(--accent-primary);margin:1rem 0 .5rem 0;font-size:.95rem;text-transform:uppercase;letter-spacing:.5px}.collapse-content ul{padding-left:0;margin-bottom:1rem;list-style-type:none}.collapse-content li{margin-bottom:.6rem;font-size:.88rem;line-height:1.7;padding-left:1.5em;position:relative}.collapse-content li::before{content:"";display:block;position:absolute;left:.2em;top:.5em;width:6px;height:6px;background-color:var(--category-color);border-radius:50%;box-shadow:0 0 5px 1px var(--category-color-glow)}.info-card .collapse-content li::before{color:var(--category-color);box-shadow:0 0 5px 1px var(--category-color-glow);background-color:var(--category-color)}.collapse-content code{font-size:.8rem;color:#ffcc99;background-color:#30363d;padding:.2em .5em;border-radius:4px;font-family:"Fira Code","Courier New",monospace;border:1px solid #444}.collapse-content pre code{display:block;padding:1em;margin:1em 0;background-color:#0d1117;border:1px solid var(--border-color);border-radius:4px;overflow-x:auto}.collapse-content dl dt{font-weight:bold;margin-top:.7em;color:var(--text-heading)}.collapse-content dl dd{margin-left:1.5em;margin-bottom:.5em;color:var(--text-secondary)}.row > *{margin-bottom:2rem}footer{padding:3rem 1rem 1rem 1rem;font-size:.8rem;color:var(--text-secondary);text-align:center}.details-toggle{font-size:.7rem;margin-top:auto;align-self:flex-start;padding:.4rem .8rem;color:var(--accent-primary);border:1px solid var(--accent-primary);background-color:transparent;border-radius:4px;transition:all .2s ease;display:inline-flex;align-items:center;gap:.4em;text-transform:uppercase;font-weight:700;letter-spacing:.8px;box-shadow:0 0 5px 0px var(--accent-primary-glow)}.details-toggle:hover{background-color:var(--accent-primary);color:var(--bg-main);border-color:var(--accent-primary);transform:scale(1.05);box-shadow:0 0 10px 2px var(--accent-primary-glow)}.details-toggle .bi{transition:transform .2s ease-in-out}.details-toggle[aria-expanded="true"] .bi{transform:rotate(180deg)}.term{font-weight:600;color:var(--accent-primary);background-color:transparent;border-bottom:1px dotted var(--accent-primary);padding-bottom:1px;border-radius:0;font-family:"Fira Code","Consolas",monospace;filter:drop-shadow(0 0 3px var(--accent-primary-glow))}.critical{color:var(--critical-color);font-weight:bold;text-shadow:0 0 6px rgba(248,81,73,.6)}.rule{color:#ffc1bd;font-weight:500;display:block;margin:1em 0;border:1px solid var(--rule-border-color);border-left-width:5px;padding:.8em 1.2em;background-color:var(--rule-bg-color);border-radius:4px;font-size:.9rem;box-shadow:inset 3px 0 8px rgba(0,0,0,.2),0 0 8px var(--rule-bg-color)}.pros::before{content:"[+] ";color:#56d364;font-weight:bold;filter:drop-shadow(0 0 3px var(--btc-glow-operations))}.cons::before{content:"[-] ";color:#ff7b72;font-weight:bold;filter:drop-shadow(0 0 3px var(--btc-glow-hot))}.pros,.cons{display:block;margin-left:0;padding-left:0}a{color:var(--accent-primary);text-decoration:none;transition:color .2s ease}a:hover{color:#9ecbff;text-decoration:underline;text-shadow:0 0 5px var(--accent-primary-glow)}.collapse-content a{color:#79c0ff}.collapse-content a:hover{color:#aedbff}.row + .row::before{content:"";position:absolute;left:10%;right:10%;top:-1rem;height:1px;background:linear-gradient(90deg,transparent,var(--accent-primary-glow),var(--accent-primary),var(--accent-primary-glow),transparent);background-size:200% 1px;opacity:.4;animation:flowLineGradient 6s linear infinite;z-index:1;border-radius:1px} + </style> +</link></meta></meta></meta></meta></link></meta></head> +<body> +<header class="page-header"> +<h1 class="display-5" itemprop="headline"> +<i class="bi bi-currency-bitcoin"></i> Bitcoin Wallet Cheatsheet + </h1> +<p class="lead" itemprop="description"> + Your guide to understanding Bitcoin wallets, securing your keys with hardware & cold storage, and practicing safe self-custody. - </p> - </header> - <div class="container" id="main-container" itemprop="articleBody"> - <div class="schema-container cat-concept" data-section-id="section-what-is-bitcoin"> - <h2 class="section-title" id="section-what-is-bitcoin"> - <i class="bi bi-lightning-charge"> - </i> - // 0. What is Bitcoin? - </h2> - <div class="row"> - <div class="col-md-8 offset-md-2"> - <div class="info-card btc-type-intro" id="card-what-is-btc"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-info-circle-fill"> - </i> - Bitcoin :: The Basics - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Bitcoin is a - <span class="term"> - decentralized digital currency - </span> - you - can send directly to anyone ( - <span class="term"> - peer-to-peer - </span> - ) without needing a bank. Transactions are recorded on a + </p> +</header> +<div class="container" id="main-container" itemprop="articleBody"> +<div class="schema-container cat-concept" data-section-id="section-what-is-bitcoin"> +<h2 class="section-title" id="section-what-is-bitcoin"> +<i class="bi bi-lightning-charge"></i> // 0. What is Bitcoin? + </h2> +<div class="row"> +<div class="col-md-8 offset-md-2"> +<div class="info-card btc-type-intro" id="card-what-is-btc"> +<div class="card-body"> +<h5 class="text-center"> +<i class="bi bi-info-circle-fill"></i> Bitcoin :: The Basics + </h5> +<div class="card-content-wrapper"> +<p class="summary"> + Bitcoin is a + <span class="term">decentralized digital currency</span> you + can send directly to anyone (<span class="term">peer-to-peer</span>) without needing a bank. Transactions are recorded on a public digital ledger called the - <span class="term"> - blockchain - </span> - . - </p> - <button aria-controls="collapseWhatIsBtc" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseWhatIsBtc" data-bs-toggle="collapse" type="button"> - Core Concepts - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseWhatIsBtc"> - <h6> - Key Characteristics: - </h6> - <ul> - <li> - <strong> - Decentralized: - </strong> - No single company, country, or person controls it. Run by a global network of computers. - </li> - <li> - <strong> - Peer-to-Peer: - </strong> - Transactions happen directly between users. - </li> - <li> - <strong> - Blockchain: - </strong> - A transparent, shared, and immutable (unchangeable) record of all transactions. - </li> - <li> - <strong> - Limited Supply: - </strong> - Only 21 million bitcoin will ever exist, making it scarce. - </li> - <li> - <strong> - Requires Keys: - </strong> - To own and control Bitcoin, you need special digital keys (explained next). - </li> - </ul> - <h6> - Learn More: - </h6> - <ul> - <li> - <strong> - Official Starting Point: - </strong> - <a href="https://bitcoin.org/en/getting-started" rel="noopener noreferrer" target="_blank"> - Bitcoin.org - Getting Started - </a> - </li> - <li> - <strong> - Original Vision: - </strong> - <a href="https://bitcoin.org/bitcoin.pdf" rel="noopener noreferrer" target="_blank"> - <i class="bi bi-file-earmark-text-fill"> - </i> - Bitcoin Whitepaper - </a> - </li> - </ul> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-concept" data-section-id="section-intro"> - <h2 class="section-title" id="section-intro"> - <i class="bi bi-terminal-plus"> - </i> - // I. Understanding Bitcoin Wallets - </h2> - <div class="row"> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-concept" id="card-what-is-wallet"> - <div class="card-body"> - <h5> - <i class="bi bi-bounding-box-circles"> - </i> - What is a Bitcoin Wallet? - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - It's software or hardware that manages your secret - <span class="term"> - private keys - </span> - . These keys are needed to access and spend your Bitcoin. - <strong class="critical"> - The wallet itself doesn't store Bitcoin - </strong> - ; it stores the keys that control your funds on the blockchain. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-concept" id="card-self-custody"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-shield-check"> - </i> - Self-Custody :: Your Keys, Your Bitcoin - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - The core principle: - <strong class="critical"> - "Not your keys, not your coins." - </strong> - This cheatsheet focuses on - <span class="term"> - self-custody - </span> - , where YOU control your private keys, not a third-party exchange or service. This gives you full control but also full responsibility. - </p> - <button aria-controls="collapseSelfCustody" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSelfCustody" data-bs-toggle="collapse" type="button"> - Why Self-Custody? - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSelfCustody"> - <h6> - Why Control Your Own Keys? - </h6> - <ul> - <li> - <strong class="pros"> - Sovereign Control: - </strong> - Only you can access or move your funds. No third party can freeze or lose them. - </li> - <li> - <strong class="pros"> - Censorship Resistance: - </strong> - No one can stop you from sending or receiving transactions. - </li> - <li> - <strong class="cons"> - Full Responsibility: - </strong> - If you lose your keys (or seed phrase), your Bitcoin is - <strong class="critical"> - permanently lost - </strong> - . You are your own bank. - </li> - </ul> - <h6> - Cheatsheet Scope: - </h6> - <p> - This guide covers wallet basics, types (Hot/Cold), secure operations, and advanced topics, focusing on tools and practices for effective self-custody. - </p> - <h6> - Legal Disclaimer: - </h6> - <p> - Educational information only. Not financial or security advice. Bitcoin technology evolves. - <strong class="critical"> - Do Your Own Research (DYOR) and verify all information independently. - </strong> - </p> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-cold" data-section-id="section-protection"> - <h2 class="section-title" id="section-protection"> - <i class="bi bi-snow3"> - </i> - // II. Protecting Your Bitcoin: Cold Storage & Hardware Wallets - </h2> - <div class="row"> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-hardware" id="card-cold-storage-intro"> - <div class="card-body"> - <h5> - <i class="bi bi-shield-shaded"> - </i> - Cold Storage :: Keeping Keys Offline - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="term"> - Cold Storage - </span> - means keeping your critical private keys completely offline, isolated from the internet. This dramatically reduces the risk of online theft (hacking, malware). - </p> - <button aria-controls="collapseColdStorageIntro" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseColdStorageIntro" data-bs-toggle="collapse" type="button"> - Why Offline? - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseColdStorageIntro"> - <h6> - The Security Advantage: - </h6> - <ul> - <li> - <strong class="pros"> - Online Threat Immunity: - </strong> - Hackers cannot access keys that are never connected to the internet. - </li> - <li> - <strong class="pros"> - Malware Resistance: - </strong> - Viruses on your computer or phone cannot steal offline keys. - </li> - <li> - <strong class="term"> - Best Practice: - </strong> - Considered the most secure way to store significant amounts of Bitcoin. - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-hardware" id="card-hardware-intro"> - <div class="card-body"> - <h5> - <i class="bi bi-memory"> - </i> - Hardware Wallets :: The Key to Cold Storage - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="term"> - Hardware Wallets - </span> - are small, specialized physical devices designed to keep your private keys secure and offline ( - <span class="term"> - cold storage - </span> - ). They sign transactions internally, never exposing keys to your connected computer/phone. - </p> - <button aria-controls="collapseHardwareIntro" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseHardwareIntro" data-bs-toggle="collapse" type="button"> - How They Work - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseHardwareIntro"> - <h6> - Core Functionality: - </h6> - <ul> - <li> - <strong class="pros"> - Key Isolation: - </strong> - Private keys are generated and stored on the device, never leaving it. - </li> - <li> - <strong class="pros"> - Secure Signing: - </strong> - Transactions are confirmed on the device's trusted screen and signed internally. Only the signed transaction (safe to share) is sent back to the computer/phone. - </li> - <li> - <strong class="pros"> - Physical Security: - </strong> - Protected by PIN codes and often tamper-evident features. - </li> - <li> - <strong class="term"> - Standard Recommendation: - </strong> - The most popular and recommended method for achieving secure cold storage for most users. - </li> - </ul> - <h6> - Common Examples: - </h6> - <ul> - <li> - <a href="#card-compare-trezor"> - Trezor - </a> - , - <a href="#card-compare-coldcard"> - Coldcard - </a> - , - <a href="#card-compare-ledger"> - Ledger - </a> - , - <a href="#card-compare-bitbox"> - BitBox02 - </a> - (More details in Section VIII). - </li> - </ul> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-concept" data-section-id="section-fundamentals"> - <h2 class="section-title" id="section-fundamentals"> - <i class="bi bi-braces-asterisk"> - </i> - // III. Wallet Fundamentals - </h2> - <div class="row"> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-concept" id="card-keys"> - <div class="card-body"> - <h5> - <i class="bi bi-key-fill"> - </i> - Private & Public Keys - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="term"> - Private Key: - </span> - Your secret password. Used to sign (authorize) transactions. - <strong class="critical"> - Guard it like gold. - </strong> - <span class="term"> - Public Key: - </span> - Derived from the private key. Used to create receiving addresses. Safe to share. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-concept" id="card-addresses"> - <div class="card-body"> - <h5> - <i class="bi bi-geo-alt-fill"> - </i> - Bitcoin Addresses - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Identifiers used to receive Bitcoin, derived from your public key. Think of them like email addresses for money. Best practice: use a new address for each transaction. - </p> - <button aria-controls="collapseAddresses" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAddresses" data-bs-toggle="collapse" type="button"> - Address Formats - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAddresses"> - <h6> - Common Address Formats (Look at the starting characters): - </h6> - <ul> - <li> - <code> - Legacy (starts with '1') - </code> - : Oldest type, highest transaction fees, maximum compatibility. - </li> - <li> - <code> - Nested SegWit (starts with '3') - </code> - : Better fees than Legacy, good compatibility. - </li> - <li> - <code> - Native SegWit (starts with 'bc1q') - </code> - : - <strong class="term"> - Current standard. Lowest fees - </strong> - , good error detection. Recommended. - </li> - <li> - <code> - Taproot (starts with 'bc1p') - </code> - : Newest type. Offers potential future privacy and efficiency benefits. - </li> - </ul> - <p> - <strong class="term"> - Privacy Tip: Generate and use a fresh address for every payment you receive. - </strong> - Most wallets do this automatically. - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-12"> - <div class="info-card btc-type-concept" id="card-seed-phrase"> - <div class="card-body"> - <h5> - <i class="bi bi-journal-code"> - </i> - Seed Phrase :: Master Backup - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - A list of 12 or 24 words that acts as the - <strong class="critical"> - master backup - </strong> - for your entire wallet. If your device is lost or broken, the seed phrase lets you recover - <span class="term"> - all - </span> - your keys and funds. - </p> - <button aria-controls="collapseSeed" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSeed" data-bs-toggle="collapse" type="button"> - Critical Details - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSeed"> - <h6> - Understanding Your Seed Phrase (BIP-39): - </h6> - <ul> - <li> - <strong class="critical"> - Function: - </strong> - The ONLY way to restore your wallet if your device fails or is lost. It IS your Bitcoin if the device is gone. - </li> - <li> - <strong> - Generation: - </strong> - Created securely by your wallet (ideally offline by a hardware wallet). - </li> - <li> - <strong> - Derivation: - </strong> - The seed phrase mathematically generates your master private key, which then generates all your individual private keys and addresses ( - <span class="term"> - BIP-32 - </span> - ). - </li> - <li> - <code> - Seed -> Master Key -> All Private Keys -> All Addresses - </code> - </li> - <li> - <strong class="critical"> - Security: Treat your seed phrase with EXTREME care. Anyone who sees it can steal ALL your funds. See Section VI for security rules. - </strong> - </li> - <li> - <strong> - Standard: - </strong> - Based on the - <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" rel="noopener noreferrer" target="_blank"> - BIP-39 - </a> - standard. - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-concept" id="card-transactions"> - <div class="card-body"> - <h5> - <i class="bi bi-arrows-fullscreen"> - </i> - How Transactions Work - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Sending Bitcoin involves using your private key to sign a message that transfers ownership of specific Bitcoin amounts ( - <span class="term"> - UTXOs - </span> - ) to a recipient's address. You include a - <span class="term"> - fee - </span> - to incentivize miners to include it in the blockchain. - </p> - <button aria-controls="collapseTx" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseTx" data-bs-toggle="collapse" type="button"> - Transaction Lifecycle - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseTx"> - <h6> - Transaction Flow: - </h6> - <ul> - <li> - <span class="term"> - UTXOs (Unspent Transaction Outputs): - </span> - Think of these as individual "coins" or "notes" of Bitcoin in your wallet. A transaction spends one or more UTXOs. - </li> - <li> - <span class="term"> - Inputs & Outputs: - </span> - Your transaction uses your UTXOs as inputs and creates new UTXOs as outputs (one for the recipient, possibly one back to you as change). - </li> - <li> - <span class="term"> - Transaction Fee (sat/vB): - </span> - A small amount paid to miners, based on the data size of your transaction (in virtual Bytes) and network congestion. Higher fees usually mean faster confirmation. Measured in - <span class="term"> - satoshis - </span> - per virtual byte. - </li> - <li> - <span class="term"> - Mempool: - </span> - A waiting area where transactions sit before being picked up by miners. - </li> - <li> - <span class="term"> - Confirmations: - </span> - When a miner includes your transaction in a block added to the blockchain, it gets one confirmation. More confirmations increase security (6+ is often considered very secure). - </li> - <li> - <strong> - Track Transactions: - </strong> - Use a - <span class="term"> - Block Explorer - </span> - like - <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank"> - mempool.space - </a> - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-concept" id="card-fee-estimation"> - <div class="card-body"> - <h5> - <i class="bi bi-speedometer2"> - </i> - Transaction Fees - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Fees ( - <span class="term"> - sat/vB - </span> - ) pay miners to include your transaction. They fluctuate based on network demand. Wallets suggest fees, but manual adjustment is possible for urgency vs. cost savings. - </p> - <button aria-controls="collapseFees" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseFees" data-bs-toggle="collapse" type="button"> - Fee Strategy - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseFees"> - <h6> - Understanding Fees: - </h6> - <ul> - <li> - <strong> - Unit: - </strong> - <span class="term"> - Satoshis per virtual Byte - </span> - (sat/vB). Higher sat/vB = higher priority for miners. - </li> - <li> - <strong> - Estimation: - </strong> - Check sites like - <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank"> - mempool.space - </a> - for current rates for low, medium, high priority. - </li> - <li> - <strong> - Wallet Defaults: - </strong> - Most wallets estimate fees, but you can often override them. - </li> - <li> - <strong> - Too Low? - </strong> - Transaction may get stuck (see - <a href="#card-adv-fee-bump"> - Fee Bumping, Section VII - </a> - ). - </li> - <li> - <strong> - Too High? - </strong> - Wasted funds. - </li> - </ul> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container" data-section-id="section-types"> - <h2 class="section-title cat-hot" id="section-hot-wallets"> - <i class="bi bi-fire"> - </i> - // IV.A Hot Wallets :: ONLINE / CONNECTED - </h2> - <div class="row"> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-software" id="card-software"> - <div class="card-body"> - <h5> - <i class="bi bi-display"> - </i> - Software Wallets (Desktop/Mobile) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Apps installed on your computer or phone. - <strong class="term"> - Hot Wallets - </strong> - because your private keys reside on a device connected to the internet. Convenient for frequent use, but - <strong class="cons"> - higher risk - </strong> - due to online exposure. - </p> - <button aria-controls="collapseSoftware" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSoftware" data-bs-toggle="collapse" type="button"> - Types & Risks - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSoftware"> - <h6> - Custody Type Matters: - </h6> - <ul> - <li> - <strong class="pros"> - Non-Custodial: - </strong> - YOU control the keys/seed phrase. Examples: - <a href="#card-compare-app-electrum"> - Electrum - </a> - , - <a href="#card-compare-app-sparrow"> - Sparrow - </a> - (Desktop); - <a href="#card-compare-app-bluewallet"> - BlueWallet - </a> - , - <a href="#card-compare-app-muun"> - Muun - </a> - (Mobile). - <strong class="term"> - [Recommended Hot Wallet Type] - </strong> - </li> - <li> - <strong class="cons"> - Custodial: - </strong> - A third party (like an exchange app) holds the keys for you. Easier to start, but you don't truly own the Bitcoin ( - <span class="term"> - Counterparty Risk - </span> - ). Not covered in detail here. - </li> - </ul> - <h6> - Threats to Hot Wallets: - </h6> - <ul> - <li> - <strong class="cons"> - Vulnerable to: - </strong> - Malware (viruses, keyloggers), Phishing attacks, OS security holes, physical theft of the device. - </li> - <li> - <strong class="term"> - Best Use: - </strong> - Small amounts for daily spending, like cash in your physical wallet. Not for large savings. - </li> - <li> - <strong class="critical"> - Rule of Thumb: Only keep small, spendable amounts in hot wallets. Use hardware wallets for long-term savings / significant holdings. - </strong> - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-web" id="card-web"> - <div class="card-body"> - <h5> - <i class="bi bi-globe2"> - </i> - Web Wallets - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Accessed through your web browser. Often custodial (run by a website). - <strong class="cons"> - Generally Considered VERY RISKY - </strong> - due to phishing, malicious browser extensions, and website hacks. Mostly avoided for self-custody. - </p> - </div> - </div> - </div> - </div> - </div> - <h2 class="section-title cat-cold" id="section-cold-wallets" style="margin-top: 2.5rem"> - <i class="bi bi-shield-shaded"> - </i> - // IV.B Cold Wallets :: OFFLINE / ISOLATED - </h2> - <div class="row"> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-hardware" id="card-hardware-detail"> - <div class="card-body"> - <h5> - <i class="bi bi-memory"> - </i> - Hardware Wallets (Recap) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Dedicated physical devices keeping keys offline. - <strong class="pros"> - The gold standard for secure cold storage. - </strong> - Sign transactions securely without exposing keys. (See Section II for intro). - </p> - <button aria-controls="collapseHardwareDetail" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseHardwareDetail" data-bs-toggle="collapse" type="button"> - Benefits & Tradeoffs - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseHardwareDetail"> - <h6> - Key Advantages: - </h6> - <ul> - <li> - <strong class="pros"> - Maximum Security: - </strong> - Private keys never touch your internet-connected computer/phone. - </li> - <li> - <strong class="pros"> - Malware/Virus Immune: - </strong> - Designed to resist threats that affect software wallets. - </li> - <li> - <strong class="pros"> - Secure Confirmation: - </strong> - Lets you physically verify transaction details on its screen before approving. - </li> - </ul> - <h6> - Considerations: - </h6> - <ul> - <li> - <strong class="cons"> - Cost: - </strong> - They are physical devices you need to purchase. - </li> - <li> - <strong class="cons"> - Physical Security: - </strong> - Needs to be kept safe from physical theft or damage (though the PIN protects it, and the seed phrase is the ultimate backup). - </li> - <li> - <strong class="term"> - Examples: - </strong> - <a href="#card-compare-trezor"> - Trezor - </a> - , - <a href="#card-compare-coldcard"> - Coldcard - </a> - , - <a href="#card-compare-ledger"> - Ledger - </a> - . (Comparison in Section VIII). - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-paper" id="card-paper"> - <div class="card-body"> - <h5> - <i class="bi bi-journal"> - </i> - Paper Wallets - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Printing your private and public keys directly onto paper. - <strong class="cons"> - Largely Obsolete & High Risk. - </strong> - Difficult to use safely, easy to damage or lose. - </p> - <button aria-controls="collapsePaper" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapsePaper" data-bs-toggle="collapse" type="button"> - Why Avoid Them? - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapsePaper"> - <h6> - Major Drawbacks: - </h6> - <ul> - <li> - <strong class="cons"> - Spending is Hard & Risky: - </strong> - Importing the private key into a software wallet exposes it online, defeating the "cold" purpose. Spending partial amounts is complex. - </li> - <li> - <strong class="cons"> - Fragile: - </strong> - Easily destroyed by fire, water, tearing, or fading ink. - </li> - <li> - <strong class="cons"> - Difficult to Generate Securely: - </strong> - Requires specialized offline procedures to avoid malware during creation. - </li> - <li> - <strong class="cons"> - Easily Compromised: - </strong> - If someone sees or copies the paper, funds can be stolen. - </li> - </ul> - <p> - <strong class="critical"> - Recommendation: Use a hardware wallet instead for much better security and usability. - </strong> - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-airgap" id="card-airgap"> - <div class="card-body"> - <h5> - <i class="bi bi-exclude"> - </i> - Air-Gapped Setups - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Using a completely offline device (like a dedicated computer or certain hardware wallets) to sign transactions. Data is transferred via mediums like SD cards or QR codes ( - <span class="term"> - PSBT - </span> - standard). - <strong class="pros"> - Maximum network isolation. - </strong> - </p> - <button aria-controls="collapseAirgap" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAirgap" data-bs-toggle="collapse" type="button"> - Process & Tradeoffs - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAirgap"> - <h6> - How it Works (Simplified): - </h6> - <ol> - <li> - Create an unsigned transaction ( - <span class="term"> - PSBT - </span> - ) on an online "watch-only" wallet. - </li> - <li> - Transfer the PSBT file/QR code to the offline signing device. - </li> - <li> - Sign the transaction securely on the offline device. - </li> - <li> - Transfer the signed PSBT back to the online device. - </li> - <li> - Broadcast the signed transaction to the Bitcoin network. - </li> - </ol> - <h6> - Pros & Cons: - </h6> - <ul> - <li> - <strong class="pros"> - Benefit: - </strong> - Eliminates almost all risk from online malware or network attacks on the signing keys. - </li> - <li> - <strong class="cons"> - Drawback: - </strong> - More complex workflow than standard hardware wallets. Potential (low) risk if the transfer medium (e.g., SD card) is compromised, though PSBTs mitigate this somewhat. - </li> - </ul> - <p> - Often used for very high security needs. Hardware wallets like - <a href="#card-compare-coldcard"> - Coldcard - </a> - or DIY options like - <a href="#card-compare-seedsigner"> - Seedsigner - </a> - specialize in this. - </p> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-operations" data-section-id="section-operations"> - <h2 class="section-title" id="section-operations"> - <i class="bi bi-gear-wide-connected"> - </i> - // V. Core Wallet Operations - </h2> - <div class="row"> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-operation" id="card-op-setup"> - <div class="card-body"> - <h5> - <i class="bi bi-motherboard-fill"> - </i> - Wallet Setup & Backup - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Generate your seed phrase securely ( - <strong class="term"> - best done on a hardware wallet - </strong> - ). - <strong class="critical"> - Write down the seed phrase accurately. Store it offline & safely. VERIFY your backup. - </strong> - Set a strong device PIN. - </p> - <button aria-controls="collapseOpSetup" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseOpSetup" data-bs-toggle="collapse" type="button"> - Setup Checklist - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseOpSetup"> - <h6> - Initialization Checklist: - </h6> - <ol> - <li> - <strong> - Hardware Wallet Prep: - </strong> - Verify device integrity (tamper seals), install official firmware if needed. - </li> - <li> - <strong> - Seed Generation: - </strong> - Let the wallet generate a new seed phrase for you. - </li> - <li> - <strong class="critical"> - Seed Phrase Backup: - </strong> - <ul> - <li> - Write words down CLEARLY and IN ORDER. Double-check spelling. - </li> - <li> - Store OFFLINE ONLY. - <strong class="term"> - Metal backups (steel plates) - </strong> - resist fire/water. See Section VI. - </li> - <li> - <strong class="critical"> - NEVER store digitally (photo, file, password manager). - </strong> - </li> - </ul> - </li> - <li> - <strong class="critical"> - Backup Verification: - </strong> - Use the wallet's function to confirm your written backup is correct *before sending any funds to the wallet*. - </li> - <li> - <strong> - Set Strong PIN/Password: - </strong> - Protects the device itself. - </li> - <li> - <strong> - (Advanced) Passphrase: - </strong> - Consider adding a BIP-39 Passphrase later for extra security (see Section VII). - </li> - </ol> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-operation" id="card-op-receive"> - <div class="card-body"> - <h5> - <i class="bi bi-download"> - </i> - Receiving Bitcoin - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Generate a fresh receiving address in your wallet. - <strong class="critical"> - If using a hardware wallet, ALWAYS verify the address shown on your computer/phone matches the address shown on the hardware wallet's trusted screen. - </strong> - Share the verified address/QR code. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-operation" id="card-op-send"> - <div class="card-body"> - <h5> - <i class="bi bi-upload"> - </i> - Sending Bitcoin - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Enter the recipient's address ( - <strong class="critical"> - DOUBLE/TRIPLE CHECK IT CAREFULLY - </strong> - ). Enter the amount. Set an appropriate transaction - <span class="term"> - fee (sat/vB) - </span> - . - <strong class="critical"> - Confirm the address and amount on your HARDWARE WALLET SCREEN before approving. - </strong> - </p> - <button aria-controls="collapseOpSend" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseOpSend" data-bs-toggle="collapse" type="button"> - Sending Checklist - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseOpSend"> - <h6> - Sending Checklist: - </h6> - <ol> - <li> - <strong> - Recipient Address: - </strong> - Paste or scan the address. - <strong class="critical"> - Visually verify the first few and last few characters match the intended address. - </strong> - Beware of clipboard malware! - </li> - <li> - <strong> - Amount: - </strong> - Enter the correct amount of Bitcoin to send. - </li> - <li> - <strong> - Fee Setting: - </strong> - Check current network conditions (e.g., on - <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank"> - mempool.space - </a> - ) to choose a fee rate ( - <span class="term"> - sat/vB - </span> - ) that matches your urgency. Higher fee = faster confirmation. - </li> - <li> - <strong> - Review on Software: - </strong> - Check all details on your computer/phone screen. - </li> - <li> - <strong class="critical"> - Hardware Wallet Confirmation: - </strong> - This is vital! Carefully check that the recipient address and amount shown ON THE HARDWARE WALLET'S SCREEN are correct before pressing the button(s) to sign/approve. This defeats clipboard hijacking malware. - </li> - <li> - <strong> - Authorize & Broadcast: - </strong> - Approve the signing on the hardware wallet. The software wallet will then broadcast the signed transaction. - </li> - </ol> - </div> - </div> - </div> - <div class="col-lg-6 col-md-6"> - <div class="info-card btc-type-operation" id="card-op-check"> - <div class="card-body"> - <h5> - <i class="bi bi-search"> - </i> - Checking Balance & History - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Your wallet software shows your balance and transaction history. You can also use a public - <span class="term"> - block explorer - </span> - (like - <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank"> - mempool.space - </a> - ) by entering your - <span class="term"> - addresses - </span> - (not keys!) but be aware this links your addresses publicly. - </p> - </div> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-security" data-section-id="section-security"> - <h2 class="section-title" id="section-security"> - <i class="bi bi-fingerprint"> - </i> - // VI. Security Best Practices (OPSEC) - </h2> - <div class="row"> - <div class="col-lg-6 col-md-12"> - <div class="info-card btc-type-security" id="card-sec-seed"> - <div class="card-body"> - <h5> - <i class="bi bi-shield-lock-fill"> - </i> - Seed Phrase Security :: Rule #1 - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <strong class="critical"> - [MOST IMPORTANT RULE] Your 12/24 words ARE your Bitcoin backup. Protect them above all else. - </strong> - Any compromise (digital or physical) means likely TOTAL LOSS. - </p> - <button aria-controls="collapseSecSeed" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecSeed" data-bs-toggle="collapse" type="button"> - Unbreakable Rules - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSecSeed"> - <strong class="rule"> - Rule 1: NEVER Store Digitally. No photos, no typing into computers/phones, no cloud storage, no password managers, no emails/chats. Assume ALL online devices can be compromised. - </strong> - <strong class="rule"> - Rule 2: NEVER Share Your Seed. No website, app, or "support agent" ever needs your seed phrase. Anyone asking is a - <strong class="critical"> - SCAMMER - </strong> - trying to steal your funds. - </strong> - <strong class="rule"> - Rule 3: BACKUP Physically & Securely. Use durable materials (steel recommended), verify accuracy, store securely offline (hidden, safe), consider redundancy (multiple locations). - </strong> - <h6> - Secure Storage Strategies: - </h6> - <ul> - <li> - <span class="pros"> - Recommended: - </span> - Verified accurate copy on - <strong class="term"> - metal plates - </strong> - (fire/water/corrosion resistant like - <a href="https://seedplate.com/" rel="noopener noreferrer" target="_blank"> - SeedPlate - </a> - , - <a href="https://cryptosteel.com/" rel="noopener noreferrer" target="_blank"> - Cryptosteel - </a> - ). Store in multiple secure, non-obvious physical locations (e.g., home safe, trusted relative's safe, bank deposit box - weigh risks of each). - </li> - <li> - <span class="cons"> - Avoid: - </span> - Plain paper (easily damaged/destroyed), easy-to-find locations, storing all backups in one place (single point of failure). - </li> - <li> - <span class="term"> - Consider: - </span> - Test your backup/recovery plan periodically with a small amount or on Testnet (See Section VII). - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-12"> - <div class="info-card btc-type-security" id="card-sec-device"> - <div class="card-body"> - <h5> - <i class="bi bi-cpu-fill"> - </i> - Hardware Wallet Security - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Buy hardware wallets - <strong class="term"> - directly from the manufacturer - </strong> - or authorized resellers. Use a strong PIN. - <strong class="critical"> - ALWAYS verify transaction details (address, amount) on the device's trusted screen before confirming. - </strong> - Keep firmware updated cautiously. - </p> - <button aria-controls="collapseSecDevice" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecDevice" data-bs-toggle="collapse" type="button"> - Device Procedures - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSecDevice"> - <h6> - Hardware Wallet Best Practices: - </h6> - <ul> - <li> - <strong> - Source Securely: - </strong> - Buy - <strong class="term"> - directly from the vendor - </strong> - to avoid tampering during shipping (supply chain attack). Check tamper-evident seals upon arrival. - </li> - <li> - <strong> - Strong PIN: - </strong> - Use a non-obvious PIN (more than 4 digits if possible). This protects against casual physical access. - </li> - <li> - <strong> - (Optional) Passphrase: - </strong> - Understand how the BIP-39 Passphrase works (Section VII) before using it. It adds security but also risk if forgotten. - </li> - <li> - <strong class="critical"> - Trusted Display Verification: - </strong> - MANDATORY for every Send/Receive operation. It's your defense against malware on your computer/phone trying to trick you into sending funds to the wrong address. - </li> - <li> - <strong> - Firmware Updates: - </strong> - Update only when necessary, using official instructions. Ensure your seed phrase backup is accessible *before* updating. Verify update authenticity. - </li> - <li> - <strong> - Physical Protection: - </strong> - Keep the device safe from theft or prolonged unauthorized access ("Evil Maid Attack" where someone tampers with it). - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-12"> - <div class="info-card btc-type-security" id="card-sec-sw-network"> - <div class="card-body"> - <h5> - <i class="bi bi-broadcast-pin"> - </i> - Computer & Network Security - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Use reputable wallet software from official sources. Keep your OS and security software updated. Be extremely vigilant against - <span class="term"> - phishing - </span> - scams. Avoid using public/untrusted Wi-Fi for sensitive operations. - </p> - <button aria-controls="collapseSecSw" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecSw" data-bs-toggle="collapse" type="button"> - Digital Hygiene - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSecSw"> - <h6> - Protecting Your Digital Environment: - </h6> - <ul> - <li> - <strong> - Software Source: - </strong> - Download wallet software ONLY from official developer websites. Verify digital signatures if possible. Prefer well-known, open-source options when using software wallets. - </li> - <li> - <strong> - System Health: - </strong> - Keep your operating system (Windows, macOS, Linux) and anti-malware software up-to-date. - </li> - <li> - <strong> - Phishing Awareness: - </strong> - Be skeptical of emails, messages, links, or apps asking for wallet details, seed phrases, or urging you to connect your wallet. Verify requests through official channels. - <strong class="critical"> - Never enter your seed phrase online or into any software except during wallet recovery. - </strong> - </li> - <li> - <strong> - Network Safety: - </strong> - Avoid connecting hardware wallets or performing sensitive actions (like seed recovery) on public Wi-Fi networks. Consider using a VPN. - </li> - <li> - <strong class="critical"> - Clipboard Malware: - </strong> - Malware can secretly change copied Bitcoin addresses. ALWAYS double-check pasted addresses visually AND confirm on your hardware wallet's screen. - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-6 col-md-12"> - <div class="info-card btc-type-security" id="card-sec-backup"> - <div class="card-body"> - <h5> - <i class="bi bi-server"> - </i> - Backup, Recovery & Inheritance - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Your - <span class="term"> - seed phrase IS the ultimate backup - </span> - . The hardware device is replaceable. Have a - <strong class="term"> - tested - </strong> - recovery plan. Consider how your family could access funds if needed ( - <span class="term"> - inheritance planning - </span> - ). - </p> - <button aria-controls="collapseSecBackup" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecBackup" data-bs-toggle="collapse" type="button"> - Contingency Plans - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseSecBackup"> - <h6> - Planning for the Unexpected: - </h6> - <ul> - <li> - <strong> - Recovery Practice: - </strong> - Know the exact steps to restore your wallet using your seed phrase on a new/reset device or compatible software. Practice this (ideally on testnet or with a tiny amount) *before* you actually need it in an emergency. - </li> - <li> - <strong> - Inheritance Planning: - </strong> - CRITICAL step often overlooked. If only you know how to access the funds, they could be lost forever upon your death or incapacitation. - <ul> - <li> - Provide clear, secure instructions to a trusted person/executor (without revealing the seed itself prematurely). - </li> - <li> - Consider using - <span class="term"> - Multisignature - </span> - setups (Section VII) to distribute control. - </li> - <li> - Explore specialized services (vet carefully!): e.g., - <a href="https://keys.casa/bitcoin-inheritance-planning" rel="noopener noreferrer" target="_blank"> - Casa - </a> - , - <a href="https://unchained.com/inheritance/" rel="noopener noreferrer" target="_blank"> - Unchained Capital - </a> - . - </li> - </ul> - </li> - <li> - <strong> - Backup Redundancy: - </strong> - Having multiple secure backups (e.g., two steel plates in different secure locations) protects against loss from a single event (fire, flood, theft). - </li> - </ul> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-advanced" data-section-id="section-advanced"> - <h2 class="section-title" id="section-advanced"> - <i class="bi bi-motherboard"> - </i> - // VII. Advanced Features & Techniques - </h2> - <div class="row"> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-passphrase"> - <div class="card-body"> - <h5> - <i class="bi bi-mask"> - </i> - BIP-39 Passphrase ("Hidden Wallet") - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - An optional, user-chosen word or phrase added to your 12/24 word seed. Creates a completely separate, hidden set of keys/addresses. Use with extreme caution. - </p> - <button aria-controls="collapseAdvPassphrase" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvPassphrase" data-bs-toggle="collapse" type="button"> - Use Cases & Risks - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvPassphrase"> - <h6> - How it Works: - </h6> - <ul> - <li> - <code> - Seed Phrase ONLY = Wallet A - </code> - </li> - <li> - <code> - Seed Phrase + Passphrase 'X' = Wallet B (Hidden) - </code> - </li> - <li> - <code> - Seed Phrase + Passphrase 'Y' = Wallet C (Hidden) - </code> - </li> - <li> - The passphrase is never stored on the device. - </li> - <li> - <strong> - Use Case: - </strong> - Plausible deniability (reveal the non-passphrase wallet under duress). Adds security if BOTH seed and passphrase are required. - </li> - </ul> - <h6> - <strong class="critical"> - CRITICAL RISK: - </strong> - </h6> - <ul> - <li> - <strong class="cons"> - If you forget the EXACT passphrase (case-sensitive, spaces count), the funds in that hidden wallet are PERMANENTLY LOST. There is NO recovery. - </strong> - You MUST back up the passphrase separately and securely from the seed, or memorize it perfectly (very risky). - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-multisig"> - <div class="card-body"> - <h5> - <i class="bi bi-diagram-3-fill"> - </i> - Multisignature (Multisig) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Requires multiple keys (held on different devices/locations) to approve a transaction (e.g., 2-of-3 keys needed). Greatly enhances security and enables shared control. - </p> - <button aria-controls="collapseAdvMultisig" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvMultisig" data-bs-toggle="collapse" type="button"> - Benefits & Setup - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvMultisig"> - <h6> - Why Use Multisig? - </h6> - <ul> - <li> - <strong class="pros"> - Enhanced Security: - </strong> - An attacker needs to compromise multiple keys/devices/locations, not just one. - </li> - <li> - <strong class="pros"> - Shared Control: - </strong> - Good for business funds (multiple partners need to sign) or joint accounts. - </li> - <li> - <strong class="pros"> - Robust Backup/Inheritance: - </strong> - Distribute keys among yourself, a safe deposit box, a lawyer, family members, etc., so losing one key doesn't mean losing funds. - </li> - </ul> - <h6> - Setup: - </h6> - <ul> - <li> - Requires specialized software (like - <a href="#card-compare-app-sparrow"> - Sparrow Wallet - </a> - , - <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank"> - Specter Desktop - </a> - , - <a href="#card-compare-app-nunchuk"> - Nunchuk - </a> - ) to coordinate multiple hardware wallets. - </li> - <li> - Uses - <span class="term"> - PSBTs - </span> - (Partially Signed Bitcoin Transactions) to pass the transaction between signers. - </li> - <li> - More complex than single-signature wallets. - </li> - <li> - Resource: - <a href="https://sparrowwallet.com/docs/multisig-wallet.html" rel="noopener noreferrer" target="_blank"> - Sparrow Multisig Guide - </a> - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-node"> - <div class="card-body"> - <h5> - <i class="bi bi-hdd-network-fill"> - </i> - Using Your Own Full Node - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Connect your wallet software (like Sparrow or Specter) directly to your own - <a href="https://bitcoincore.org/" rel="noopener noreferrer" target="_blank"> - Bitcoin Core - </a> - full node instead of relying on third-party servers. - <strong class="pros"> - Maximizes privacy and trustlessness. - </strong> - </p> - <button aria-controls="collapseAdvNode" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvNode" data-bs-toggle="collapse" type="button"> - Why Run a Node? - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvNode"> - <h6> - Benefits: - </h6> - <ul> - <li> - <strong> - Privacy: - </strong> - Your wallet doesn't broadcast your addresses and transaction history to company servers. - </li> - <li> - <strong> - Verification: - </strong> - Your node independently validates all Bitcoin rules and transactions; you don't trust someone else's node. - </li> - <li> - <strong> - Network Support: - </strong> - Helps strengthen the decentralized Bitcoin network. - </li> - </ul> - <h6> - Requirements: - </h6> - <ul> - <li> - Requires dedicated hardware (like a Raspberry Pi or old computer), sufficient internet bandwidth, and storage space. - </li> - <li> - Easier setup options exist (e.g., - <a href="https://umbrel.com/" rel="noopener noreferrer" target="_blank"> - Umbrel - </a> - , - <a href="https://start9.com/" rel="noopener noreferrer" target="_blank"> - Start9 - </a> - ). - </li> - <li> - Requires compatible wallet software. - </li> - <li> - Resource: - <a href="https://bitcoin.org/en/full-node#choose-your-node" rel="noopener noreferrer" target="_blank"> - Node Implementation Options - </a> - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-coincontrol"> - <div class="card-body"> - <h5> - <i class="bi bi-vinyl-fill"> - </i> - Coin Control (UTXO Management) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Manually selecting which specific "chunks" of Bitcoin ( - <span class="term"> - UTXOs - </span> - ) are used as inputs when creating a transaction. Useful for advanced privacy and fee management. - </p> - <button aria-controls="collapseAdvCoinControl" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvCoinControl" data-bs-toggle="collapse" type="button"> - Why Use It? - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvCoinControl"> - <h6> - Benefits: - </h6> - <ul> - <li> - <strong> - Privacy: - </strong> - Avoids linking UTXOs from different sources together in one transaction, which can reveal information about your holdings. Allows separating funds (e.g., KYC vs non-KYC - *note: advanced topic with limits*). - </li> - <li> - <strong> - Fee Management: - </strong> - Can sometimes help optimize transaction size and cost by choosing specific UTXOs. - </li> - <li> - <strong> - Labeling: - </strong> - Allows you to label UTXOs with their source or purpose for better tracking. - </li> - </ul> - <p> - Requires wallet software that supports this feature (e.g., - <a href="#card-compare-app-electrum"> - Electrum - </a> - , - <a href="#card-compare-app-sparrow"> - Sparrow - </a> - , - <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank"> - Specter - </a> - ). - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-psbt"> - <div class="card-body"> - <h5> - <i class="bi bi-file-binary-fill"> - </i> - PSBT (Partially Signed Bitcoin Tx) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - A standard format ( - <a href="https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki" rel="noopener noreferrer" target="_blank"> - BIP-174 - </a> - ) for transactions that are not yet fully signed. Essential for - <span class="term"> - air-gapped - </span> - and - <span class="term"> - multisig - </span> - workflows. - </p> - <button aria-controls="collapseAdvPsbt" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvPsbt" data-bs-toggle="collapse" type="button"> - How It's Used - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvPsbt"> - <h6> - Common Workflows: - </h6> - <ul> - <li> - <strong> - Air-Gap Signing: - </strong> - 1. Create unsigned PSBT online. 2. Move PSBT file/QR to offline signer. 3. Sign PSBT offline. 4. Move signed PSBT back online. 5. Broadcast. - </li> - <li> - <strong> - Multisignature Signing: - </strong> - 1. Create unsigned PSBT. 2. Pass to Signer 1 -> Signs -> Partially Signed PSBT. 3. Pass to Signer 2 -> Signs -> Fully Signed PSBT (if 2-of-2). 4. Broadcast. - </li> - </ul> - <p> - Facilitates complex signing arrangements without exposing keys online. - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-fee-bump"> - <div class="card-body"> - <h5> - <i class="bi bi-graph-up-arrow"> - </i> - Fee Bumping (RBF / CPFP) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Techniques to speed up a stuck (unconfirmed) transaction by increasing the fee. - </p> - <button aria-controls="collapseFeeBump" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseFeeBump" data-bs-toggle="collapse" type="button"> - How It Works - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseFeeBump"> - <h6> - Methods: - </h6> - <ul> - <li> - <span class="term"> - RBF (Replace-By-Fee): - </span> - If your wallet enabled RBF ( - <a href="https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki" rel="noopener noreferrer" target="_blank"> - BIP-125 - </a> - ) when sending, you can broadcast a *new version* of the same transaction with a higher fee. Miners will prioritize the higher-fee version. - </li> - <li> - <span class="term"> - CPFP (Child-Pays-For-Parent): - </span> - If you received a transaction that is stuck, you can spend *that* incoming UTXO (even before it confirms) in a *new* transaction with a very high fee. Miners are incentivized to mine the stuck parent transaction so they can also mine the high-fee child transaction. - </li> - </ul> - <p> - Requires wallet support for these features. - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-shamir"> - <div class="card-body"> - <h5> - <i class="bi bi-intersect"> - </i> - Shamir Backup (Seed Splitting) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Splits your seed phrase backup into multiple unique 'shares' (e.g., 3-of-5). You need a certain threshold of shares (e.g., 3 out of the 5) to recover the wallet. Increases redundancy. - </p> - <button aria-controls="collapseAdvShamir" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvShamir" data-bs-toggle="collapse" type="button"> - Pros & Cons - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAdvShamir"> - <h6> - How it Helps: - </h6> - <ul> - <li> - <strong class="pros"> - Redundancy: - </strong> - You can lose some shares (less than the threshold) and still recover your funds. - </li> - <li> - <strong class="pros"> - Security: - </strong> - An attacker needs to find multiple shares (the threshold number) to steal funds, not just one backup. - </li> - </ul> - <h6> - Considerations: - </h6> - <ul> - <li> - <strong class="cons"> - Complexity: - </strong> - More complex to set up and recover than a standard BIP-39 seed phrase. - </li> - <li> - <strong class="cons"> - Compatibility: - </strong> - Less widely supported by wallets. Primarily associated with Trezor hardware wallets ( - <a href="https://github.com/satoshilabs/slips/blob/master/slip-0039.md" rel="noopener noreferrer" target="_blank"> - SLIP-39 standard - </a> - ). - </li> - <li> - Still requires careful management of the individual shares. - </li> - </ul> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-advanced" id="card-adv-testnet"> - <div class="card-body"> - <h5> - <i class="bi bi-joystick"> - </i> - Testnet (Practice Network) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - A parallel Bitcoin network where the coins have no real-world value. Excellent for safely testing wallet features, practicing recovery procedures, or learning without risking real money. - </p> - </div> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-comparison" data-section-id="section-comparison"> - <h2 class="section-title" id="section-comparison"> - <i class="bi bi-motherboard-fill"> - </i> - // VIII. Hardware Wallet Comparison - </h2> - <div class="row"> - <div class="col-12"> - <div class="info-card btc-type-comparison" id="card-compare-factors"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-sliders"> - </i> - How to Choose a Hardware Wallet - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Consider: Security Model (Chip Type, Code Audits), Bitcoin Focus vs Multi-Coin, Air-Gap Capability, User Experience, Advanced Features (Multisig, Passphrase), Price, Vendor Reputation. - </p> - <button aria-controls="collapseCompareFactors" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseCompareFactors" data-bs-toggle="collapse" type="button"> - Factors Explained - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseCompareFactors"> - <h6> - Key Comparison Factors: - </h6> - <ul> - <li> - <strong> - Security Chip: - </strong> - <span class="term"> - Secure Element (SE) - </span> - is a dedicated, tamper-resistant chip (often closed-source) vs. a - <span class="term"> - General Purpose Microcontroller (MCU) - </span> - which relies more on software hardening (can be more open). Both have pros/cons. - </li> - <li> - <strong> - Source Code: - </strong> - Is the firmware ( - <span class="term"> - Open Source - </span> - ) verifiable by the public, or ( - <span class="term"> - Closed Source - </span> - ) requiring trust in the vendor? Hardware design openness also varies. - </li> - <li> - <strong> - Coin Support: - </strong> - <span class="term"> - Bitcoin-Only - </span> - devices have a reduced attack surface (less code complexity). - <span class="term"> - Multi-Coin - </span> - devices offer convenience if you hold other assets but add complexity. - </li> - <li> - <strong> - Air-Gap Features: - </strong> - Does it support true air-gapped operation (via SD card/QR codes like - <a href="#card-compare-coldcard"> - Coldcard - </a> - ) or does it require USB/Bluetooth? - </li> - <li> - <strong> - User Experience (UX): - </strong> - Ease of setup, screen quality, button usability, companion software quality. - </li> - <li> - <strong> - Advanced Features: - </strong> - Support for Passphrases, Multisig (PSBT), Coin Control, Shamir Backup (SLIP-39), etc. - </li> - <li> - <strong> - Price Point. - </strong> - </li> - <li> - <strong> - Vendor Reputation & Trust: - </strong> - Company history, security track record, community perception, responsiveness to issues. - </li> - </ul> - <p> - <strong class="term"> - No single "best" wallet exists. Choose based on your technical comfort, security needs, budget, and desired features. - </strong> - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-trezor"> - <div class="card-body"> - <h5> - <i class="bi bi-unlock-fill"> - </i> - Trezor (Safe 5 / Safe 3 / Model T) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Long history, Open Source FW (device), User-friendly Suite, Passphrase (All). Safe 5: Large Color Touchscreen, Haptic feedback, Shamir/Enhanced Backup. Safe 3/5: Secure Element Option. Model T: Shamir Backup. - </span> - <span class="cons"> - [-] Safe 3/5 SE firmware is closed source. Model T uses MCU (less physical tamper resistance vs SE). No native air-gap mode (USB required). Safe 5 is higher priced. - </span> - </p> - <p> - <a href="https://trezor.io/" rel="noopener noreferrer" target="_blank"> - trezor.io - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-coldcard"> - <div class="card-body"> - <h5> - <i class="bi bi-calculator-fill"> - </i> - Coldcard (Mk4 / Q1) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Bitcoin-Only (reduced attack surface), Strong security reputation, True Air-Gap (SD card, NFC, USB-PSBT), Excellent PSBT/Multisig support, Open Source Firmware, Dual Secure Elements (Mk4/Q1), Physical security (PIN, Duress PIN, Brick Me PIN). Q1 adds QWERTY keyboard, larger screen. - </span> - <span class="cons"> - [-] Steeper learning curve than others, Requires coordinator software (e.g., Sparrow, Specter), Basic UI (functional, not fancy), Q1 is larger and more expensive. - </span> - </p> - <p> - <a href="https://coldcard.com/" rel="noopener noreferrer" target="_blank"> - coldcard.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-bitkey"> - <div class="card-body"> - <h5> - <i class="bi bi-key-fill"> - </i> - Bitkey - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Beginner-friendly setup, No user-managed seed phrase (removes major user error point), Simple hardware (fingerprint), Recovery assistance via 2-of-3 multisig (Mobile Key, Hardware Key, Server Key), Integration with partners (e.g., Cash App, Coinbase). - </span> - <span class="cons"> - [-] **Not traditional self-custody:** Relies on a 2-of-3 multisig where Block/Bitkey holds one server key, introducing counterparty risk (server availability, policy enforcement/limits, potential censorship). Mobile key is hot. Hardware key doesn't operate standalone like traditional HWs. Requires server interaction for signing/recovery. Closed-source components (especially server-side). Different trust model than fully user-controlled wallets. - </span> - </p> - <p> - <a href="https://bitkey.world/" rel="noopener noreferrer" target="_blank"> - bitkey.world - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-ledger"> - <div class="card-body"> - <h5> - <i class="bi bi-usb-fill"> - </i> - Ledger (Nano S+ / Nano X / Stax) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Uses Secure Element (SE) chip, Wide Coin Support, Popular/Well-known brand, Polished Ledger Live companion app (Desktop/Mobile), Bluetooth (Nano X). - </span> - <span class="cons"> - [-] Closed Source device firmware & SE firmware, Requires trust in vendor. Controversial 'Ledger Recover' service (opt-in seed fragment backup). Past *customer data* breach (not keys). Heavy reliance on Ledger Live app. Multi-coin support increases code complexity/attack surface vs Bitcoin-only. Stax significantly delayed. - </span> - </p> - <p> - <a href="https://www.ledger.com/" rel="noopener noreferrer" target="_blank"> - ledger.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-bitbox"> - <div class="card-body"> - <h5> - <i class="bi bi-box-fill"> - </i> - BitBox02 (Bitcoin-Only Ed.) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Strong security focus (SE + Open FW parts), Minimalist design, BTC-Only version available, Good companion app. - </span> - <span class="cons"> - [-] Requires BitBoxApp, USB connection (no true air-gap). - </span> - </p> - <p> - <a href="https://bitbox.swiss/" rel="noopener noreferrer" target="_blank"> - bitbox.swiss - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-seedsigner"> - <div class="card-body"> - <h5> - <i class="bi bi-qr-code-scan"> - </i> - Seedsigner (DIY) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Very Low Cost, DIY/Educational, Fully Air-Gapped via QR codes (stateless option), Fully Open Source HW & SW. - </span> - <span class="cons"> - [-] Requires assembly & setup, UX depends on components used, QR scanning can be slower. - </span> - </p> - <p> - <a href="https://seedsigner.com/" rel="noopener noreferrer" target="_blank"> - seedsigner.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-jade"> - <div class="card-body"> - <h5> - <i class="bi bi-camera-fill"> - </i> - Blockstream Jade - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Affordable, Bitcoin-focused, Optional QR Air-Gap mode, Open Source HW/FW, Stateless/Server-assisted security model option. - </span> - <span class="cons"> - [-] Server assistance ("Blind Oracle") requires trust (optional unlock), Basic UI. - </span> - </p> - <p> - <a href="https://blockstream.com/jade/" rel="noopener noreferrer" target="_blank"> - blockstream.com/jade/ - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-passport"> - <div class="card-body"> - <h5> - <i class="bi bi-passport-fill"> - </i> - Foundation Passport (Batch 2) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Premium build quality, Bitcoin-focused, Air-Gapped via QR/SD card, Strong security emphasis, Open Source FW. - </span> - <span class="cons"> - [-] Higher price point, Relies on companion app/coordinator SW. - </span> - </p> - <p> - <a href="https://foundationdevices.com/" rel="noopener noreferrer" target="_blank"> - foundationdevices.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-choice"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-check2-square"> - </i> - Making Your Choice - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Factor in your technical skills, budget, need for other coins, desire for air-gap, open source preferences, advanced feature needs (like multisig), and trust in the vendor. - <strong class="term"> - Analyze the tradeoffs based on your personal threat model and use case. - </strong> - </p> - </div> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-comparison" data-section-id="section-app-comparison"> - <h2 class="section-title" id="section-app-comparison"> - <i class="bi bi-grid-1x2-fill"> - </i> - // IX. App Wallet Comparison (Software/Mobile) - </h2> - <div class="row"> - <div class="col-12"> - <div class="info-card btc-type-comparison" id="card-app-compare-factors"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-sliders"> - </i> - How to Choose an App Wallet - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Consider: Platform (Desktop/Mobile), Ease of Use, Features (Lightning, Coin Control, Node Connect, HW Support), Security Model, Open Source Status, Vendor Reputation. - <strong class="critical"> - App wallets carry inherent online risks; hardware wallets are advised for substantial amounts. Focus on Non-Custodial options where YOU control the keys/seed. - </strong> - </p> - <button aria-controls="collapseAppCompareFactors" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseAppCompareFactors" data-bs-toggle="collapse" type="button"> - Factors Explained - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseAppCompareFactors"> - <h6> - Key Comparison Factors for App Wallets: - </h6> - <ul> - <li> - <strong> - Platform: - </strong> - Is it available for your device (iOS, Android, Windows, macOS, Linux)? - </li> - <li> - <strong> - User Experience (UX): - </strong> - Is it intuitive for beginners or geared towards advanced users? - </li> - <li> - <strong> - Key Features: - </strong> - <ul> - <li> - <span class="term"> - Lightning Network: - </span> - Does it support faster, cheaper Layer 2 payments? - </li> - <li> - <span class="term"> - Coin Control: - </span> - Can you manually select UTXOs for privacy/fee management? - </li> - <li> - <span class="term"> - Full Node Connection: - </span> - Can it connect to your own Bitcoin node for maximum privacy? - </li> - <li> - <span class="term"> - Hardware Wallet Integration: - </span> - Can it act as an interface for your hardware wallet? - </li> - <li> - <span class="term"> - Multisig Support: - </span> - Does it facilitate setting up or signing multisignature transactions? - </li> - </ul> - </li> - <li> - <strong> - Security Model: - </strong> - How are keys stored? Does it offer extra security features (e.g., Tor support)? - </li> - <li> - <strong> - Open Source: - </strong> - Is the code publicly available for review? This increases transparency and trust. - </li> - <li> - <strong> - Reputation: - </strong> - Vendor track record, community perception, responsiveness to issues. - </li> - </ul> - <p> - <strong class="term"> - Prioritize wallets that are non-custodial, well-reviewed, and ideally open-source. Test with small amounts first. - </strong> - </p> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-sparrow"> - <div class="card-body"> - <h5> - <i class="bi bi-tools"> - </i> - Sparrow Wallet - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Desktop (Win/Mac/Linux), Feature-Rich (Coin Control, Node, HW, Multisig), Privacy focus (Tor), Open Source. - </span> - <span class="cons"> - [-] Desktop only, Can be complex for beginners. - </span> - </p> - <p> - <a href="https://sparrowwallet.com/" rel="noopener noreferrer" target="_blank"> - sparrowwallet.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-bluewallet"> - <div class="card-body"> - <h5> - <i class="bi bi-phone-fill"> - </i> - BlueWallet - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Mobile (iOS/Android), User-Friendly, Supports Lightning (custodial LDK node option), HW integration, Multisig Vaults, Open Source. - </span> - <span class="cons"> - [-] Some advanced features less obvious, LN is custodial by default (but configurable). - </span> - </p> - <p> - <a href="https://bluewallet.io/" rel="noopener noreferrer" target="_blank"> - bluewallet.io - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-electrum"> - <div class="card-body"> - <h5> - <i class="bi bi-pc-display"> - </i> - Electrum - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Desktop (Win/Mac/Linux), Mobile (Android), Long-standing, Advanced features (Coin Control, LN, Multisig, HW support), Open Source. - </span> - <span class="cons"> - [-] UI can feel dated/complex for beginners, relies on Electrum servers by default (can connect to own node). - </span> - </p> - <p> - <a href="https://electrum.org/" rel="noopener noreferrer" target="_blank"> - electrum.org - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-muun"> - <div class="card-body"> - <h5> - <i class="bi bi-recycle"> - </i> - Muun Wallet - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Mobile (iOS/Android), Very Simple UI, Seamless On-chain/Lightning handling (via submarine swaps), Non-custodial LN. - </span> - <span class="cons"> - [-] Fewer advanced features (no coin control/node connect), Unique backup method (Emergency Kit + Email/Password or Social Recovery - understand it!). - </span> - </p> - <p> - <a href="https://muun.com/" rel="noopener noreferrer" target="_blank"> - muun.com - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-green"> - <div class="card-body"> - <h5> - <i class="bi bi-shield-check"> - </i> - Blockstream Green - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Mobile (iOS/Android), Desktop (Limited), Strong focus on Multisig security (2-of-2 with server, or 2-of-3), HW support, Tor support, Open Source. - </span> - <span class="cons"> - [-] Default multisig relies on Blockstream server for one signature (2FA helps), Fewer features than Sparrow/Electrum. - </span> - </p> - <p> - <a href="https://blockstream.com/green/" rel="noopener noreferrer" target="_blank"> - blockstream.com/green - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-compare-app-nunchuk"> - <div class="card-body"> - <h5> - <i class="bi bi-diagram-3"> - </i> - Nunchuk - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <span class="pros"> - [+] Mobile (iOS/Android), Desktop (Win/Mac/Linux), Strong focus on Collaborative Multisig, Intuitive multisig setup, HW support, Air-gapped signing option. - </span> - <span class="cons"> - [-] Primarily designed for multisig (can do single sig), Subscription model for some features. - </span> - </p> - <p> - <a href="https://nunchuk.io/" rel="noopener noreferrer" target="_blank"> - nunchuk.io - </a> - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-comparison comparison-item" id="card-app-compare-choice"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-check2-square"> - </i> - Making Your Choice - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Choose based on your primary device (mobile/desktop), technical comfort, need for specific features like Lightning or Multisig, and privacy requirements. - <strong class="term"> - Always download from official sources and verify authenticity where possible. - </strong> - </p> - </div> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-pitfalls" data-section-id="section-pitfalls"> - <h2 class="section-title" id="section-pitfalls"> - <i class="bi bi-exclamation-diamond-fill"> - </i> - // X. How People Lose Bitcoin (Avoid These!) - </h2> - <div class="row"> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-seed"> - <div class="card-body"> - <h5> - <i class="bi bi-journal-x"> - </i> - Seed Phrase Loss / Compromise - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <strong class="cons"> - #1 CAUSE OF LOSS: - </strong> - Losing the physical backup, damage (fire/water), incorrect transcription, storing it digitally (photo/file/cloud -> HACKED), forgetting passphrase. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-phishing"> - <div class="card-body"> - <h5> - <i class="bi bi-broadcast"> - </i> - Phishing / Scams - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - <strong class="cons"> - #2 CAUSE OF LOSS: - </strong> - Being tricked into revealing your seed phrase or private keys to fake websites, fake apps, fake support agents, or malicious software. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-malware"> - <div class="card-body"> - <h5> - <i class="bi bi-virus"> - </i> - Malware on Computer/Phone - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Viruses stealing keys from software wallets, clipboard hijackers changing pasted addresses, fake wallet apps, keyloggers capturing passwords. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-physical"> - <div class="card-body"> - <h5> - <i class="bi bi-person-fill-x"> - </i> - Physical Theft / Coercion - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Theft of poorly secured seed phrase backups, theft of hardware wallet (PIN/Passphrase is defense), being forced to reveal keys ("$5 wrench attack"). - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-device"> - <div class="card-body"> - <h5> - <i class="bi bi-hdd-rack-fill"> - </i> - Device Issues (Without Backup) - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Forgetting PIN after too many tries (requires seed restore), device failure/damage - <span class="term"> - without having a verified seed backup - </span> - , accidental factory reset. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-estate"> - <div class="card-body"> - <h5> - <i class="bi bi-person-slash"> - </i> - Lack of Inheritance Plan - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Owner passes away or becomes incapacitated without leaving clear, secure instructions for heirs to access the funds. Bitcoin becomes permanently lost. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-supply"> - <div class="card-body"> - <h5> - <i class="bi bi-truck"> - </i> - Supply Chain / Bad Vendor - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Receiving a tampered hardware wallet (always buy direct!), using insecure or malicious wallet software from unknown sources. - </p> - </div> - </div> - </div> - </div> - <div class="col-lg-4 col-md-6"> - <div class="info-card btc-type-pitfall" id="card-pitfall-summary"> - <div class="card-body"> - <h5> - <i class="bi bi-shield-exclamation"> - </i> - Prevention is Key - </h5> - <div class="card-content-wrapper"> - <p class="summary"> - Most losses are preventable through careful seed phrase management, vigilance against scams, using reputable hardware, and having robust backup plans. - </p> - </div> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-glossary" data-section-id="section-glossary"> - <h2 class="section-title" id="section-glossary"> - <i class="bi bi-book-half"> - </i> - // XI. Terminology Glossary - </h2> - <div class="row"> - <div class="col-12"> - <div class="info-card btc-type-glossary" id="card-glossary"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-translate"> - </i> - Key Terms Defined - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Quick definitions for common Bitcoin and wallet terms used in this guide. - </p> - <button aria-controls="collapseGlossary" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseGlossary" data-bs-toggle="collapse" type="button"> - View Glossary - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseGlossary"> - <dl> - <dt> - Address - </dt> - <dd> - Identifier used to receive Bitcoin (e.g., starts with 1, 3, bc1q, bc1p). Generated from your public key. - </dd> - <dt> - Air Gap - </dt> - <dd> - Keeping a device (like a hardware wallet or dedicated signing computer) physically isolated from network connections (internet, Bluetooth). - </dd> - <dt> - BIP (Bitcoin Improvement Proposal) - </dt> - <dd> - Standards documents for the Bitcoin protocol (e.g., BIP-32, BIP-39). - </dd> - <dt> - BIP-32 - </dt> - <dd> - Standard for Hierarchical Deterministic (HD) wallets, allowing many keys to be derived from a single master seed. - </dd> - <dt> - BIP-39 - </dt> - <dd> - Standard for mnemonic seed phrases (12/24 words) used to back up and recover HD wallets. - </dd> - <dt> - BIP-44/84/86 - </dt> - <dd> - Standards defining specific ways (derivation paths) to organize keys for different address types (Legacy, SegWit, Taproot) within a BIP-32 wallet. - </dd> - <dt> - Bitcoin Core - </dt> - <dd> - The primary, reference implementation of the Bitcoin full node software. - </dd> - <dt> - Block Explorer - </dt> - <dd> - A website or tool used to view information on the public blockchain (transactions, addresses, blocks). - </dd> - <dt> - Blockchain - </dt> - <dd> - The distributed, public, and immutable ledger that records all Bitcoin transactions. - </dd> - <dt> - Cold Storage - </dt> - <dd> - <strong class="term"> - Storing private keys completely offline, away from internet connections. - </strong> - The most secure way to hold Bitcoin, typically achieved using hardware wallets or fully air-gapped devices. - </dd> - <dt> - Coin Control - </dt> - <dd> - Manually selecting specific UTXOs (unspent chunks of Bitcoin) to use as inputs when creating a transaction. - </dd> - <dt> - Confirmation - </dt> - <dd> - The inclusion of a transaction in a block added to the blockchain. More confirmations increase transaction finality. - </dd> - <dt> - CPFP (Child-Pays-For-Parent) - </dt> - <dd> - A fee-bumping technique where you spend an unconfirmed incoming transaction (the 'child') with a high fee, incentivizing miners to confirm both the child and its stuck 'parent'. - </dd> - <dt> - Custodial - </dt> - <dd> - A service where a third party (like an exchange) holds your private keys for you. - <strong class="critical"> - You don't truly control the Bitcoin; "Not your keys, not your coins." - </strong> - </dd> - <dt> - Derivation Path - </dt> - <dd> - A specific "route" defined by standards like BIP-44/84/86, telling the wallet how to find/generate specific keys/addresses from the master seed (e.g., m/84'/0'/0'/0/0). - </dd> - <dt> - Fee Rate (sat/vB) - </dt> - <dd> - The price paid for transaction inclusion, measured in satoshis per virtual byte of transaction data size. - </dd> - <dt> - Full Node - </dt> - <dd> - Software that downloads and independently validates the entire Bitcoin blockchain according to the network's consensus rules. - </dd> - <dt> - Hardware Wallet - </dt> - <dd> - <strong class="term"> - A physical device designed to securely store private keys offline (cold storage) and sign transactions without exposing keys to a connected computer/phone. - </strong> - The recommended standard for significant holdings. - </dd> - <dt> - HD Wallet (Hierarchical Deterministic) - </dt> - <dd> - A wallet using BIP-32, where all keys and addresses are derived from a single master seed (backed up by the BIP-39 seed phrase). - </dd> - <dt> - Hot Wallet - </dt> - <dd> - <strong class="term"> - A wallet where the private keys are stored on a device that is connected to the internet (e.g., software wallets on phones/computers). - </strong> - Convenient for spending, but carries higher risk than cold storage. - </dd> - <dt> - Keys (Private/Public) - </dt> - <dd> - Cryptographic pair: Private Key (secret, signs transactions), Public Key (sharable, derives addresses). - </dd> - <dt> - Mempool - </dt> - <dd> - The "waiting room" for broadcasted transactions before they are confirmed in a block by miners. - </dd> - <dt> - Multisignature (Multisig) - </dt> - <dd> - A setup requiring signatures from multiple private keys (M out of N total keys, e.g., 2-of-3) to authorize a transaction. - </dd> - <dt> - Non-Custodial - </dt> - <dd> - A wallet where - <strong class="term"> - YOU - </strong> - control your own private keys and seed phrase ( - <span class="term"> - Self-Custody - </span> - ). This cheatsheet focuses on non-custodial solutions. - </dd> - <dt> - OPSEC (Operations Security) - </dt> - <dd> - Practices and procedures to protect sensitive information (like your seed phrase and keys) and reduce risks. - </dd> - <dt> - Passphrase (BIP-39) - </dt> - <dd> - An optional, user-defined "25th word" added to the seed phrase to create a hidden wallet. - <strong class="critical"> - Lose the passphrase, lose the funds in that hidden wallet. - </strong> - </dd> - <dt> - Private Key - </dt> - <dd> - The secret data that proves ownership and allows spending of Bitcoin associated with specific addresses. - </dd> - <dt> - PSBT (Partially Signed Bitcoin Transaction) - </dt> - <dd> - A standard format (BIP-174) for passing transactions between signers or devices without revealing sensitive key information, used in multisig and air-gapped setups. - </dd> - <dt> - Public Key - </dt> - <dd> - Derived from the private key, used to generate receiving addresses. Safe to share. - </dd> - <dt> - QR Code - </dt> - <dd> - A square barcode often used to easily share Bitcoin addresses or transaction data. - </dd> - <dt> - RBF (Replace-By-Fee) - </dt> - <dd> - A fee-bumping technique (BIP-125) allowing you to replace your own unconfirmed transaction with a new one that includes a higher fee. - </dd> - <dt> - Satoshis (Sats) - </dt> - <dd> - The smallest divisible unit of Bitcoin. 1 BTC = 100,000,000 sats. - </dd> - <dt> - Secure Element (SE) - </dt> - <dd> - A specialized, tamper-resistant chip found in some hardware wallets, designed to securely store cryptographic keys. - </dd> - <dt> - Seed Phrase - </dt> - <dd> - <strong class="term"> - The mnemonic backup (usually 12 or 24 words, BIP-39) for your HD wallet's master private key. Your ultimate recovery tool. - </strong> - </dd> - <dt> - Self-Custody - </dt> - <dd> - <strong class="term"> - The practice of holding and controlling your own private keys, rather than relying on a third party. - </strong> - Empowers the user but requires responsibility. - </dd> - <dt> - Shamir Backup (SLIP-39) - </dt> - <dd> - A standard for splitting a seed into multiple 'shares', requiring a certain threshold (e.g., 3-of-5) to recover the wallet. Offers redundancy. - </dd> - <dt> - Signature - </dt> - <dd> - A piece of cryptographic data created using a private key to prove ownership and authorize a transaction. - </dd> - <dt> - Software Wallet - </dt> - <dd> - A wallet application running on a general-purpose device like a computer or smartphone (typically a hot wallet). - </dd> - <dt> - Taproot - </dt> - <dd> - A recent Bitcoin protocol upgrade (P2TR addresses, starting bc1p) improving efficiency and privacy potential for complex transactions. - </dd> - <dt> - Testnet - </dt> - <dd> - A parallel Bitcoin network used for testing purposes, where coins have no real value. - </dd> - <dt> - UTXO (Unspent Transaction Output) - </dt> - <dd> - An individual "chunk" of bitcoin recorded on the blockchain that can be spent as an input in a new transaction. - </dd> - <dt> - Watch-Only Wallet - </dt> - <dd> - A wallet loaded only with public keys or addresses. It can track balances and transactions but cannot sign or spend funds. - </dd> - </dl> - </div> - </div> - </div> - </div> - </div> - <div class="schema-container cat-resources" data-section-id="section-resources"> - <h2 class="section-title" id="section-resources"> - <i class="bi bi-compass-fill"> - </i> - // XII. Further Resources & Tools - </h2> - <div class="row"> - <div class="col-12"> - <div class="info-card btc-type-resource" id="card-resources"> - <div class="card-body"> - <h5 class="text-center"> - <i class="bi bi-link-45deg"> - </i> - Recommended Links - </h5> - <div class="card-content-wrapper"> - <p class="summary text-center"> - Links to reputable wallet software, hardware vendors, block explorers, educational sites, and related content. - </p> - <button aria-controls="collapseResources" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseResources" data-bs-toggle="collapse" type="button"> - Browse Links - <i class="bi bi-chevron-down"> - </i> - </button> - </div> - </div> - <div class="collapse collapse-content" id="collapseResources"> - <h6> - A. Recommended Software Wallets (Non-Custodial): - </h6> - <ul> - <li> - Desktop: - <a href="#card-compare-app-sparrow"> - Sparrow Wallet - </a> - (Feature-rich, Privacy/Node focus), - <a href="#card-compare-app-electrum"> - Electrum - </a> - (Long-standing, Advanced), - <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank"> - Specter Desktop - </a> - (Multisig/HW focus) - </li> - <li> - Mobile: - <a href="#card-compare-app-bluewallet"> - BlueWallet - </a> - (User-friendly, versatile), - <a href="#card-compare-app-muun"> - Muun Wallet - </a> - (Simple, Lightning focus), - <a href="#card-compare-app-green"> - Blockstream Green - </a> - (Multisig options) - </li> - <li> - Multisig Coordinator: - <a href="#card-compare-app-nunchuk"> - Nunchuk - </a> - (Mobile/Desktop) - </li> - </ul> - <h6> - B. Reputable Hardware Wallet Vendors (Buy Direct!): - </h6> - <ul> - <li> - <a href="#card-compare-trezor"> - Trezor - </a> - </li> - <li> - <a href="#card-compare-coldcard"> - Coldcard - </a> - (Coinkite) - </li> - <li> - <a href="#card-compare-ledger"> - Ledger - </a> - </li> - <li> - <a href="#card-compare-bitbox"> - BitBox - </a> - (Shift Crypto) - </li> - <li> - <a href="#card-compare-jade"> - Blockstream Jade - </a> - </li> - <li> - <a href="#card-compare-passport"> - Foundation Devices - </a> - (Passport) - </li> - <li> - <a href="#card-compare-seedsigner"> - Seedsigner - </a> - (DIY Project) - </li> - </ul> - <h6> - C. Block Explorers: - </h6> - <ul> - <li> - <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank"> - mempool.space - </a> - (Popular, comprehensive) - </li> - <li> - <a href="https://blockstream.info/" rel="noopener noreferrer" target="_blank"> - Blockstream.info - </a> - </li> - </ul> - <h6> - D. Educational Resources: - </h6> - <ul> - <li> - <a href="https://bitcoin.org/en/" rel="noopener noreferrer" target="_blank"> - Bitcoin.org - </a> - (Official site, good starting point) - </li> - <li> - <a href="https://bitcoin.page/" rel="noopener noreferrer" target="_blank"> - bitcoin.page - </a> - (Curated resources) - </li> - <li> - <a href="https://www.lopp.net/bitcoin-information.html" rel="noopener noreferrer" target="_blank"> - Lopp.net Bitcoin Resources - </a> - (Very comprehensive list) - </li> - <li> - <a href="https://en.bitcoin.it/wiki/Main_Page" rel="noopener noreferrer" target="_blank"> - Bitcoin Wiki - </a> - (Community-maintained) - </li> - <li> - <a href="https://bitcoinops.org/" rel="noopener noreferrer" target="_blank"> - Bitcoin Optech - </a> - (Technical developments) - </li> - </ul> - <h6> - E. Related Content / Author Links (Original): - </h6> - <ul> - <li> - <a href="https://walletrecovery.info/articles/" rel="noopener noreferrer" target="_blank"> - WalletRecovery.info Articles - </a> - </li> - <li> - <a href="https://davidveksler.substack.com/archive" rel="noopener noreferrer" target="_blank"> - David Veksler Substack Archive - </a> - </li> + <span class="term">blockchain</span>. + </p> +<button aria-controls="collapseWhatIsBtc" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseWhatIsBtc" data-bs-toggle="collapse" type="button"> + Core Concepts <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseWhatIsBtc"> +<h6>Key Characteristics:</h6> +<ul> +<li><strong>Decentralized:</strong> No single company, country, or person controls it. Run by a global network of computers.</li> +<li><strong>Peer-to-Peer:</strong> Transactions happen directly between users.</li> +<li><strong>Blockchain:</strong> A transparent, shared, and immutable (unchangeable) record of all transactions.</li> +<li><strong>Limited Supply:</strong> Only 21 million bitcoin will ever exist, making it scarce.</li> +<li><strong>Requires Keys:</strong> To own and control Bitcoin, you need special digital keys (explained next).</li> +</ul> +<h6>Learn More:</h6> +<ul> +<li><strong>Official Starting Point:</strong> <a href="https://bitcoin.org/en/getting-started" rel="noopener noreferrer" target="_blank">Bitcoin.org - Getting Started</a></li> +<li><strong>Original Vision:</strong> <a href="https://bitcoin.org/bitcoin.pdf" rel="noopener noreferrer" target="_blank"><i class="bi bi-file-earmark-text-fill"></i> Bitcoin Whitepaper</a></li> +</ul> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-concept" data-section-id="section-intro"> +<h2 class="section-title" id="section-intro"> +<i class="bi bi-terminal-plus"></i> // I. Understanding Bitcoin Wallets + </h2> +<div class="row"> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-concept" id="card-what-is-wallet"> +<div class="card-body"> +<h5><i class="bi bi-bounding-box-circles"></i> What is a Bitcoin Wallet?</h5> +<div class="card-content-wrapper"> +<p class="summary"> + It's software or hardware that manages your secret <span class="term">private keys</span>. These keys are needed to access and spend your Bitcoin. <strong class="critical">The wallet itself doesn't store Bitcoin</strong>; it stores the keys that control your funds on the blockchain. + </p> +</div> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-concept" id="card-self-custody"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-shield-check"></i> Self-Custody :: Your Keys, Your Bitcoin</h5> +<div class="card-content-wrapper"> +<p class="summary"> + The core principle: <strong class="critical">"Not your keys, not your coins."</strong> This cheatsheet focuses on <span class="term">self-custody</span>, where YOU control your private keys, not a third-party exchange or service. This gives you full control but also full responsibility. + </p> +<button aria-controls="collapseSelfCustody" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSelfCustody" data-bs-toggle="collapse" type="button"> + Why Self-Custody? <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSelfCustody"> +<h6>Why Control Your Own Keys?</h6> +<ul> +<li><strong class="pros">Sovereign Control:</strong> Only you can access or move your funds. No third party can freeze or lose them.</li> +<li><strong class="pros">Censorship Resistance:</strong> No one can stop you from sending or receiving transactions.</li> +<li><strong class="cons">Full Responsibility:</strong> If you lose your keys (or seed phrase), your Bitcoin is <strong class="critical">permanently lost</strong>. You are your own bank.</li> +</ul> +<h6>Cheatsheet Scope:</h6> +<p>This guide covers wallet basics, types (Hot/Cold), secure operations, and advanced topics, focusing on tools and practices for effective self-custody.</p> +<h6>Legal Disclaimer:</h6> +<p>Educational information only. Not financial or security advice. Bitcoin technology evolves. <strong class="critical">Do Your Own Research (DYOR) and verify all information independently.</strong></p> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-cold" data-section-id="section-protection"> +<h2 class="section-title" id="section-protection"> +<i class="bi bi-snow3"></i> // II. Protecting Your Bitcoin: Cold Storage & Hardware Wallets + </h2> +<div class="row"> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-hardware" id="card-cold-storage-intro"> +<div class="card-body"> +<h5><i class="bi bi-shield-shaded"></i> Cold Storage :: Keeping Keys Offline</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="term">Cold Storage</span> means keeping your critical private keys completely offline, isolated from the internet. This dramatically reduces the risk of online theft (hacking, malware). + </p> +<button aria-controls="collapseColdStorageIntro" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseColdStorageIntro" data-bs-toggle="collapse" type="button"> + Why Offline? <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseColdStorageIntro"> +<h6>The Security Advantage:</h6> +<ul> +<li><strong class="pros">Online Threat Immunity:</strong> Hackers cannot access keys that are never connected to the internet.</li> +<li><strong class="pros">Malware Resistance:</strong> Viruses on your computer or phone cannot steal offline keys.</li> +<li><strong class="term">Best Practice:</strong> Considered the most secure way to store significant amounts of Bitcoin.</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-hardware" id="card-hardware-intro"> +<div class="card-body"> +<h5><i class="bi bi-memory"></i> Hardware Wallets :: The Key to Cold Storage</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="term">Hardware Wallets</span> are small, specialized physical devices designed to keep your private keys secure and offline (<span class="term">cold storage</span>). They sign transactions internally, never exposing keys to your connected computer/phone. + </p> +<button aria-controls="collapseHardwareIntro" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseHardwareIntro" data-bs-toggle="collapse" type="button"> + How They Work <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseHardwareIntro"> +<h6>Core Functionality:</h6> +<ul> +<li><strong class="pros">Key Isolation:</strong> Private keys are generated and stored on the device, never leaving it.</li> +<li><strong class="pros">Secure Signing:</strong> Transactions are confirmed on the device's trusted screen and signed internally. Only the signed transaction (safe to share) is sent back to the computer/phone.</li> +<li><strong class="pros">Physical Security:</strong> Protected by PIN codes and often tamper-evident features.</li> +<li><strong class="term">Standard Recommendation:</strong> The most popular and recommended method for achieving secure cold storage for most users.</li> +</ul> +<h6>Common Examples:</h6> +<ul> +<li><a href="#card-compare-trezor">Trezor</a>, <a href="#card-compare-coldcard">Coldcard</a>, <a href="#card-compare-ledger">Ledger</a>, <a href="#card-compare-bitbox">BitBox02</a> (More details in Section VIII).</li> +</ul> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-concept" data-section-id="section-fundamentals"> +<h2 class="section-title" id="section-fundamentals"> +<i class="bi bi-braces-asterisk"></i> // III. Wallet Fundamentals + </h2> +<div class="row"> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-concept" id="card-keys"> +<div class="card-body"> +<h5><i class="bi bi-key-fill"></i> Private & Public Keys</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="term">Private Key:</span> Your secret password. Used to sign (authorize) transactions. <strong class="critical">Guard it like gold.</strong> <span class="term">Public Key:</span> Derived from the private key. Used to create receiving addresses. Safe to share. + </p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-concept" id="card-addresses"> +<div class="card-body"> +<h5><i class="bi bi-geo-alt-fill"></i> Bitcoin Addresses</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Identifiers used to receive Bitcoin, derived from your public key. Think of them like email addresses for money. Best practice: use a new address for each transaction. + </p> +<button aria-controls="collapseAddresses" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAddresses" data-bs-toggle="collapse" type="button"> + Address Formats <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAddresses"> +<h6>Common Address Formats (Look at the starting characters):</h6> +<ul> +<li><code>Legacy (starts with '1')</code>: Oldest type, highest transaction fees, maximum compatibility.</li> +<li><code>Nested SegWit (starts with '3')</code>: Better fees than Legacy, good compatibility.</li> +<li><code>Native SegWit (starts with 'bc1q')</code>: <strong class="term">Current standard. Lowest fees</strong>, good error detection. Recommended.</li> +<li><code>Taproot (starts with 'bc1p')</code>: Newest type. Offers potential future privacy and efficiency benefits.</li> +</ul> +<p><strong class="term">Privacy Tip: Generate and use a fresh address for every payment you receive.</strong> Most wallets do this automatically.</p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-12"> +<div class="info-card btc-type-concept" id="card-seed-phrase"> +<div class="card-body"> +<h5><i class="bi bi-journal-code"></i> Seed Phrase :: Master Backup</h5> +<div class="card-content-wrapper"> +<p class="summary"> + A list of 12 or 24 words that acts as the <strong class="critical">master backup</strong> for your entire wallet. If your device is lost or broken, the seed phrase lets you recover <span class="term">all</span> your keys and funds. + </p> +<button aria-controls="collapseSeed" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSeed" data-bs-toggle="collapse" type="button"> + Critical Details <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSeed"> +<h6>Understanding Your Seed Phrase (BIP-39):</h6> +<ul> +<li><strong class="critical">Function:</strong> The ONLY way to restore your wallet if your device fails or is lost. It IS your Bitcoin if the device is gone.</li> +<li><strong>Generation:</strong> Created securely by your wallet (ideally offline by a hardware wallet).</li> +<li><strong>Derivation:</strong> The seed phrase mathematically generates your master private key, which then generates all your individual private keys and addresses (<span class="term">BIP-32</span>).</li> +<li><code>Seed -> Master Key -> All Private Keys -> All Addresses</code></li> +<li><strong class="critical">Security: Treat your seed phrase with EXTREME care. Anyone who sees it can steal ALL your funds. See Section VI for security rules.</strong></li> +<li><strong>Standard:</strong> Based on the <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" rel="noopener noreferrer" target="_blank">BIP-39</a> standard.</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-concept" id="card-transactions"> +<div class="card-body"> +<h5><i class="bi bi-arrows-fullscreen"></i> How Transactions Work</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Sending Bitcoin involves using your private key to sign a message that transfers ownership of specific Bitcoin amounts (<span class="term">UTXOs</span>) to a recipient's address. You include a <span class="term">fee</span> to incentivize miners to include it in the blockchain. + </p> +<button aria-controls="collapseTx" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseTx" data-bs-toggle="collapse" type="button"> + Transaction Lifecycle <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseTx"> +<h6>Transaction Flow:</h6> +<ul> +<li><span class="term">UTXOs (Unspent Transaction Outputs):</span> Think of these as individual "coins" or "notes" of Bitcoin in your wallet. A transaction spends one or more UTXOs.</li> +<li><span class="term">Inputs & Outputs:</span> Your transaction uses your UTXOs as inputs and creates new UTXOs as outputs (one for the recipient, possibly one back to you as change).</li> +<li><span class="term">Transaction Fee (sat/vB):</span> A small amount paid to miners, based on the data size of your transaction (in virtual Bytes) and network congestion. Higher fees usually mean faster confirmation. Measured in <span class="term">satoshis</span> per virtual byte.</li> +<li><span class="term">Mempool:</span> A waiting area where transactions sit before being picked up by miners.</li> +<li><span class="term">Confirmations:</span> When a miner includes your transaction in a block added to the blockchain, it gets one confirmation. More confirmations increase security (6+ is often considered very secure).</li> +<li><strong>Track Transactions:</strong> Use a <span class="term">Block Explorer</span> like <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank">mempool.space</a></li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-concept" id="card-fee-estimation"> +<div class="card-body"> +<h5><i class="bi bi-speedometer2"></i> Transaction Fees</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Fees (<span class="term">sat/vB</span>) pay miners to include your transaction. They fluctuate based on network demand. Wallets suggest fees, but manual adjustment is possible for urgency vs. cost savings. + </p> +<button aria-controls="collapseFees" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseFees" data-bs-toggle="collapse" type="button"> + Fee Strategy <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseFees"> +<h6>Understanding Fees:</h6> +<ul> +<li><strong>Unit:</strong> <span class="term">Satoshis per virtual Byte</span> (sat/vB). Higher sat/vB = higher priority for miners.</li> +<li><strong>Estimation:</strong> Check sites like <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank">mempool.space</a> for current rates for low, medium, high priority.</li> +<li><strong>Wallet Defaults:</strong> Most wallets estimate fees, but you can often override them.</li> +<li><strong>Too Low?</strong> Transaction may get stuck (see <a href="#card-adv-fee-bump">Fee Bumping, Section VII</a>).</li> +<li><strong>Too High?</strong> Wasted funds.</li> +</ul> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container" data-section-id="section-types"> +<h2 class="section-title cat-hot" id="section-hot-wallets"> +<i class="bi bi-fire"></i> // IV.A Hot Wallets :: ONLINE / CONNECTED + </h2> +<div class="row"> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-software" id="card-software"> +<div class="card-body"> +<h5><i class="bi bi-display"></i> Software Wallets (Desktop/Mobile)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Apps installed on your computer or phone. <strong class="term">Hot Wallets</strong> because your private keys reside on a device connected to the internet. Convenient for frequent use, but <strong class="cons">higher risk</strong> due to online exposure. + </p> +<button aria-controls="collapseSoftware" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSoftware" data-bs-toggle="collapse" type="button"> + Types & Risks <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSoftware"> +<h6>Custody Type Matters:</h6> +<ul> +<li><strong class="pros">Non-Custodial:</strong> YOU control the keys/seed phrase. Examples: <a href="#card-compare-app-electrum">Electrum</a>, <a href="#card-compare-app-sparrow">Sparrow</a> (Desktop); <a href="#card-compare-app-bluewallet">BlueWallet</a>, <a href="#card-compare-app-muun">Muun</a> (Mobile). <strong class="term">[Recommended Hot Wallet Type]</strong></li> +<li><strong class="cons">Custodial:</strong> A third party (like an exchange app) holds the keys for you. Easier to start, but you don't truly own the Bitcoin (<span class="term">Counterparty Risk</span>). Not covered in detail here.</li> +</ul> +<h6>Threats to Hot Wallets:</h6> +<ul> +<li><strong class="cons">Vulnerable to:</strong> Malware (viruses, keyloggers), Phishing attacks, OS security holes, physical theft of the device.</li> +<li><strong class="term">Best Use:</strong> Small amounts for daily spending, like cash in your physical wallet. Not for large savings.</li> +<li><strong class="critical">Rule of Thumb: Only keep small, spendable amounts in hot wallets. Use hardware wallets for long-term savings / significant holdings.</strong></li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-web" id="card-web"> +<div class="card-body"> +<h5><i class="bi bi-globe2"></i> Web Wallets</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Accessed through your web browser. Often custodial (run by a website). <strong class="cons">Generally Considered VERY RISKY</strong> due to phishing, malicious browser extensions, and website hacks. Mostly avoided for self-custody. + </p> +</div> +</div> +</div> +</div> +</div> +<h2 class="section-title cat-cold" id="section-cold-wallets" style="margin-top: 2.5rem"> +<i class="bi bi-shield-shaded"></i> // IV.B Cold Wallets :: OFFLINE / ISOLATED + </h2> +<div class="row"> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-hardware" id="card-hardware-detail"> +<div class="card-body"> +<h5><i class="bi bi-memory"></i> Hardware Wallets (Recap)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Dedicated physical devices keeping keys offline. <strong class="pros">The gold standard for secure cold storage.</strong> Sign transactions securely without exposing keys. (See Section II for intro). + </p> +<button aria-controls="collapseHardwareDetail" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseHardwareDetail" data-bs-toggle="collapse" type="button"> + Benefits & Tradeoffs <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseHardwareDetail"> +<h6>Key Advantages:</h6> +<ul> +<li><strong class="pros">Maximum Security:</strong> Private keys never touch your internet-connected computer/phone.</li> +<li><strong class="pros">Malware/Virus Immune:</strong> Designed to resist threats that affect software wallets.</li> +<li><strong class="pros">Secure Confirmation:</strong> Lets you physically verify transaction details on its screen before approving.</li> +</ul> +<h6>Considerations:</h6> +<ul> +<li><strong class="cons">Cost:</strong> They are physical devices you need to purchase.</li> +<li><strong class="cons">Physical Security:</strong> Needs to be kept safe from physical theft or damage (though the PIN protects it, and the seed phrase is the ultimate backup).</li> +<li><strong class="term">Examples:</strong> <a href="#card-compare-trezor">Trezor</a>, <a href="#card-compare-coldcard">Coldcard</a>, <a href="#card-compare-ledger">Ledger</a>. (Comparison in Section VIII).</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-paper" id="card-paper"> +<div class="card-body"> +<h5><i class="bi bi-journal"></i> Paper Wallets</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Printing your private and public keys directly onto paper. <strong class="cons">Largely Obsolete & High Risk.</strong> Difficult to use safely, easy to damage or lose. + </p> +<button aria-controls="collapsePaper" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapsePaper" data-bs-toggle="collapse" type="button"> + Why Avoid Them? <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapsePaper"> +<h6>Major Drawbacks:</h6> +<ul> +<li><strong class="cons">Spending is Hard & Risky:</strong> Importing the private key into a software wallet exposes it online, defeating the "cold" purpose. Spending partial amounts is complex.</li> +<li><strong class="cons">Fragile:</strong> Easily destroyed by fire, water, tearing, or fading ink.</li> +<li><strong class="cons">Difficult to Generate Securely:</strong> Requires specialized offline procedures to avoid malware during creation.</li> +<li><strong class="cons">Easily Compromised:</strong> If someone sees or copies the paper, funds can be stolen.</li> +</ul> +<p><strong class="critical">Recommendation: Use a hardware wallet instead for much better security and usability.</strong></p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-airgap" id="card-airgap"> +<div class="card-body"> +<h5><i class="bi bi-exclude"></i> Air-Gapped Setups</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Using a completely offline device (like a dedicated computer or certain hardware wallets) to sign transactions. Data is transferred via mediums like SD cards or QR codes (<span class="term">PSBT</span> standard). <strong class="pros">Maximum network isolation.</strong> +</p> +<button aria-controls="collapseAirgap" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAirgap" data-bs-toggle="collapse" type="button"> + Process & Tradeoffs <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAirgap"> +<h6>How it Works (Simplified):</h6> +<ol> +<li>Create an unsigned transaction (<span class="term">PSBT</span>) on an online "watch-only" wallet.</li> +<li>Transfer the PSBT file/QR code to the offline signing device.</li> +<li>Sign the transaction securely on the offline device.</li> +<li>Transfer the signed PSBT back to the online device.</li> +<li>Broadcast the signed transaction to the Bitcoin network.</li> +</ol> +<h6>Pros & Cons:</h6> +<ul> +<li><strong class="pros">Benefit:</strong> Eliminates almost all risk from online malware or network attacks on the signing keys.</li> +<li><strong class="cons">Drawback:</strong> More complex workflow than standard hardware wallets. Potential (low) risk if the transfer medium (e.g., SD card) is compromised, though PSBTs mitigate this somewhat.</li> +</ul> +<p>Often used for very high security needs. Hardware wallets like <a href="#card-compare-coldcard">Coldcard</a> or DIY options like <a href="#card-compare-seedsigner">Seedsigner</a> specialize in this.</p> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-operations" data-section-id="section-operations"> +<h2 class="section-title" id="section-operations"> +<i class="bi bi-gear-wide-connected"></i> // V. Core Wallet Operations + </h2> +<div class="row"> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-operation" id="card-op-setup"> +<div class="card-body"> +<h5><i class="bi bi-motherboard-fill"></i> Wallet Setup & Backup</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Generate your seed phrase securely (<strong class="term">best done on a hardware wallet</strong>). <strong class="critical">Write down the seed phrase accurately. Store it offline & safely. VERIFY your backup.</strong> Set a strong device PIN. + </p> +<button aria-controls="collapseOpSetup" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseOpSetup" data-bs-toggle="collapse" type="button"> + Setup Checklist <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseOpSetup"> +<h6>Initialization Checklist:</h6> +<ol> +<li><strong>Hardware Wallet Prep:</strong> Verify device integrity (tamper seals), install official firmware if needed.</li> +<li><strong>Seed Generation:</strong> Let the wallet generate a new seed phrase for you.</li> +<li><strong class="critical">Seed Phrase Backup:</strong> +<ul> +<li>Write words down CLEARLY and IN ORDER. Double-check spelling.</li> +<li>Store OFFLINE ONLY. <strong class="term">Metal backups (steel plates)</strong> resist fire/water. See Section VI.</li> +<li><strong class="critical">NEVER store digitally (photo, file, password manager).</strong></li> +</ul> +</li> +<li><strong class="critical">Backup Verification:</strong> Use the wallet's function to confirm your written backup is correct *before sending any funds to the wallet*.</li> +<li><strong>Set Strong PIN/Password:</strong> Protects the device itself.</li> +<li><strong>(Advanced) Passphrase:</strong> Consider adding a BIP-39 Passphrase later for extra security (see Section VII).</li> +</ol> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-operation" id="card-op-receive"> +<div class="card-body"> +<h5><i class="bi bi-download"></i> Receiving Bitcoin</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Generate a fresh receiving address in your wallet. <strong class="critical">If using a hardware wallet, ALWAYS verify the address shown on your computer/phone matches the address shown on the hardware wallet's trusted screen.</strong> Share the verified address/QR code. + </p> +</div> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-operation" id="card-op-send"> +<div class="card-body"> +<h5><i class="bi bi-upload"></i> Sending Bitcoin</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Enter the recipient's address (<strong class="critical">DOUBLE/TRIPLE CHECK IT CAREFULLY</strong>). Enter the amount. Set an appropriate transaction <span class="term">fee (sat/vB)</span>. <strong class="critical">Confirm the address and amount on your HARDWARE WALLET SCREEN before approving.</strong> +</p> +<button aria-controls="collapseOpSend" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseOpSend" data-bs-toggle="collapse" type="button"> + Sending Checklist <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseOpSend"> +<h6>Sending Checklist:</h6> +<ol> +<li><strong>Recipient Address:</strong> Paste or scan the address. <strong class="critical">Visually verify the first few and last few characters match the intended address.</strong> Beware of clipboard malware!</li> +<li><strong>Amount:</strong> Enter the correct amount of Bitcoin to send.</li> +<li><strong>Fee Setting:</strong> Check current network conditions (e.g., on <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank">mempool.space</a>) to choose a fee rate (<span class="term">sat/vB</span>) that matches your urgency. Higher fee = faster confirmation.</li> +<li><strong>Review on Software:</strong> Check all details on your computer/phone screen.</li> +<li><strong class="critical">Hardware Wallet Confirmation:</strong> This is vital! Carefully check that the recipient address and amount shown ON THE HARDWARE WALLET'S SCREEN are correct before pressing the button(s) to sign/approve. This defeats clipboard hijacking malware.</li> +<li><strong>Authorize & Broadcast:</strong> Approve the signing on the hardware wallet. The software wallet will then broadcast the signed transaction.</li> +</ol> +</div> +</div> +</div> +<div class="col-lg-6 col-md-6"> +<div class="info-card btc-type-operation" id="card-op-check"> +<div class="card-body"> +<h5><i class="bi bi-search"></i> Checking Balance & History</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Your wallet software shows your balance and transaction history. You can also use a public <span class="term">block explorer</span> (like <a href="https://mempool.space/" rel="noopener noreferrer" target="_blank">mempool.space</a>) by entering your <span class="term">addresses</span> (not keys!) but be aware this links your addresses publicly. + </p> +</div> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-security" data-section-id="section-security"> +<h2 class="section-title" id="section-security"> +<i class="bi bi-fingerprint"></i> // VI. Security Best Practices (OPSEC) + </h2> +<div class="row"> +<div class="col-lg-6 col-md-12"> +<div class="info-card btc-type-security" id="card-sec-seed"> +<div class="card-body"> +<h5><i class="bi bi-shield-lock-fill"></i> Seed Phrase Security :: Rule #1</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<strong class="critical">[MOST IMPORTANT RULE] Your 12/24 words ARE your Bitcoin backup. Protect them above all else.</strong> Any compromise (digital or physical) means likely TOTAL LOSS. + </p> +<button aria-controls="collapseSecSeed" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecSeed" data-bs-toggle="collapse" type="button"> + Unbreakable Rules <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSecSeed"> +<strong class="rule">Rule 1: NEVER Store Digitally. No photos, no typing into computers/phones, no cloud storage, no password managers, no emails/chats. Assume ALL online devices can be compromised.</strong> +<strong class="rule">Rule 2: NEVER Share Your Seed. No website, app, or "support agent" ever needs your seed phrase. Anyone asking is a <strong class="critical">SCAMMER</strong> trying to steal your funds.</strong> +<strong class="rule">Rule 3: BACKUP Physically & Securely. Use durable materials (steel recommended), verify accuracy, store securely offline (hidden, safe), consider redundancy (multiple locations).</strong> +<h6>Secure Storage Strategies:</h6> +<ul> +<li><span class="pros">Recommended:</span> Verified accurate copy on <strong class="term">metal plates</strong> (fire/water/corrosion resistant like <a href="https://seedplate.com/" rel="noopener noreferrer" target="_blank">SeedPlate</a>, <a href="https://cryptosteel.com/" rel="noopener noreferrer" target="_blank">Cryptosteel</a>). Store in multiple secure, non-obvious physical locations (e.g., home safe, trusted relative's safe, bank deposit box - weigh risks of each).</li> +<li><span class="cons">Avoid:</span> Plain paper (easily damaged/destroyed), easy-to-find locations, storing all backups in one place (single point of failure).</li> +<li><span class="term">Consider:</span> Test your backup/recovery plan periodically with a small amount or on Testnet (See Section VII).</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-12"> +<div class="info-card btc-type-security" id="card-sec-device"> +<div class="card-body"> +<h5><i class="bi bi-cpu-fill"></i> Hardware Wallet Security</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Buy hardware wallets <strong class="term">directly from the manufacturer</strong> or authorized resellers. Use a strong PIN. <strong class="critical">ALWAYS verify transaction details (address, amount) on the device's trusted screen before confirming.</strong> Keep firmware updated cautiously. + </p> +<button aria-controls="collapseSecDevice" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecDevice" data-bs-toggle="collapse" type="button"> + Device Procedures <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSecDevice"> +<h6>Hardware Wallet Best Practices:</h6> +<ul> +<li><strong>Source Securely:</strong> Buy <strong class="term">directly from the vendor</strong> to avoid tampering during shipping (supply chain attack). Check tamper-evident seals upon arrival.</li> +<li><strong>Strong PIN:</strong> Use a non-obvious PIN (more than 4 digits if possible). This protects against casual physical access.</li> +<li><strong>(Optional) Passphrase:</strong> Understand how the BIP-39 Passphrase works (Section VII) before using it. It adds security but also risk if forgotten.</li> +<li><strong class="critical">Trusted Display Verification:</strong> MANDATORY for every Send/Receive operation. It's your defense against malware on your computer/phone trying to trick you into sending funds to the wrong address.</li> +<li><strong>Firmware Updates:</strong> Update only when necessary, using official instructions. Ensure your seed phrase backup is accessible *before* updating. Verify update authenticity.</li> +<li><strong>Physical Protection:</strong> Keep the device safe from theft or prolonged unauthorized access ("Evil Maid Attack" where someone tampers with it).</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-12"> +<div class="info-card btc-type-security" id="card-sec-sw-network"> +<div class="card-body"> +<h5><i class="bi bi-broadcast-pin"></i> Computer & Network Security</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Use reputable wallet software from official sources. Keep your OS and security software updated. Be extremely vigilant against <span class="term">phishing</span> scams. Avoid using public/untrusted Wi-Fi for sensitive operations. + </p> +<button aria-controls="collapseSecSw" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecSw" data-bs-toggle="collapse" type="button"> + Digital Hygiene <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSecSw"> +<h6>Protecting Your Digital Environment:</h6> +<ul> +<li><strong>Software Source:</strong> Download wallet software ONLY from official developer websites. Verify digital signatures if possible. Prefer well-known, open-source options when using software wallets.</li> +<li><strong>System Health:</strong> Keep your operating system (Windows, macOS, Linux) and anti-malware software up-to-date.</li> +<li><strong>Phishing Awareness:</strong> Be skeptical of emails, messages, links, or apps asking for wallet details, seed phrases, or urging you to connect your wallet. Verify requests through official channels. <strong class="critical">Never enter your seed phrase online or into any software except during wallet recovery.</strong></li> +<li><strong>Network Safety:</strong> Avoid connecting hardware wallets or performing sensitive actions (like seed recovery) on public Wi-Fi networks. Consider using a VPN.</li> +<li><strong class="critical">Clipboard Malware:</strong> Malware can secretly change copied Bitcoin addresses. ALWAYS double-check pasted addresses visually AND confirm on your hardware wallet's screen.</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-6 col-md-12"> +<div class="info-card btc-type-security" id="card-sec-backup"> +<div class="card-body"> +<h5><i class="bi bi-server"></i> Backup, Recovery & Inheritance</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Your <span class="term">seed phrase IS the ultimate backup</span>. The hardware device is replaceable. Have a <strong class="term">tested</strong> recovery plan. Consider how your family could access funds if needed (<span class="term">inheritance planning</span>). + </p> +<button aria-controls="collapseSecBackup" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseSecBackup" data-bs-toggle="collapse" type="button"> + Contingency Plans <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseSecBackup"> +<h6>Planning for the Unexpected:</h6> +<ul> +<li><strong>Recovery Practice:</strong> Know the exact steps to restore your wallet using your seed phrase on a new/reset device or compatible software. Practice this (ideally on testnet or with a tiny amount) *before* you actually need it in an emergency.</li> +<li><strong>Inheritance Planning:</strong> CRITICAL step often overlooked. If only you know how to access the funds, they could be lost forever upon your death or incapacitation. + <ul> +<li>Provide clear, secure instructions to a trusted person/executor (without revealing the seed itself prematurely).</li> +<li>Consider using <span class="term">Multisignature</span> setups (Section VII) to distribute control.</li> +<li>Explore specialized services (vet carefully!): e.g., <a href="https://keys.casa/bitcoin-inheritance-planning" rel="noopener noreferrer" target="_blank">Casa</a>, <a href="https://unchained.com/inheritance/" rel="noopener noreferrer" target="_blank">Unchained Capital</a>.</li> +</ul> +</li> +<li><strong>Backup Redundancy:</strong> Having multiple secure backups (e.g., two steel plates in different secure locations) protects against loss from a single event (fire, flood, theft).</li> +</ul> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-advanced" data-section-id="section-advanced"> +<h2 class="section-title" id="section-advanced"> +<i class="bi bi-motherboard"></i> // VII. Advanced Features & Techniques + </h2> +<div class="row"> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-passphrase"> +<div class="card-body"> +<h5><i class="bi bi-mask"></i> BIP-39 Passphrase ("Hidden Wallet")</h5> +<div class="card-content-wrapper"> +<p class="summary"> + An optional, user-chosen word or phrase added to your 12/24 word seed. Creates a completely separate, hidden set of keys/addresses. Use with extreme caution. + </p> +<button aria-controls="collapseAdvPassphrase" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvPassphrase" data-bs-toggle="collapse" type="button"> + Use Cases & Risks <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvPassphrase"> +<h6>How it Works:</h6> +<ul> +<li><code>Seed Phrase ONLY = Wallet A</code></li> +<li><code>Seed Phrase + Passphrase 'X' = Wallet B (Hidden)</code></li> +<li><code>Seed Phrase + Passphrase 'Y' = Wallet C (Hidden)</code></li> +<li>The passphrase is never stored on the device.</li> +<li><strong>Use Case:</strong> Plausible deniability (reveal the non-passphrase wallet under duress). Adds security if BOTH seed and passphrase are required.</li> +</ul> +<h6><strong class="critical">CRITICAL RISK:</strong></h6> +<ul> +<li><strong class="cons">If you forget the EXACT passphrase (case-sensitive, spaces count), the funds in that hidden wallet are PERMANENTLY LOST. There is NO recovery.</strong> You MUST back up the passphrase separately and securely from the seed, or memorize it perfectly (very risky).</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-multisig"> +<div class="card-body"> +<h5><i class="bi bi-diagram-3-fill"></i> Multisignature (Multisig)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Requires multiple keys (held on different devices/locations) to approve a transaction (e.g., 2-of-3 keys needed). Greatly enhances security and enables shared control. + </p> +<button aria-controls="collapseAdvMultisig" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvMultisig" data-bs-toggle="collapse" type="button"> + Benefits & Setup <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvMultisig"> +<h6>Why Use Multisig?</h6> +<ul> +<li><strong class="pros">Enhanced Security:</strong> An attacker needs to compromise multiple keys/devices/locations, not just one.</li> +<li><strong class="pros">Shared Control:</strong> Good for business funds (multiple partners need to sign) or joint accounts.</li> +<li><strong class="pros">Robust Backup/Inheritance:</strong> Distribute keys among yourself, a safe deposit box, a lawyer, family members, etc., so losing one key doesn't mean losing funds.</li> +</ul> +<h6>Setup:</h6> +<ul> +<li>Requires specialized software (like <a href="#card-compare-app-sparrow">Sparrow Wallet</a>, <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank">Specter Desktop</a>, <a href="#card-compare-app-nunchuk">Nunchuk</a>) to coordinate multiple hardware wallets.</li> +<li>Uses <span class="term">PSBTs</span> (Partially Signed Bitcoin Transactions) to pass the transaction between signers.</li> +<li>More complex than single-signature wallets.</li> +<li>Resource: <a href="https://sparrowwallet.com/docs/multisig-wallet.html" rel="noopener noreferrer" target="_blank">Sparrow Multisig Guide</a></li> +</ul> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-node"> +<div class="card-body"> +<h5><i class="bi bi-hdd-network-fill"></i> Using Your Own Full Node</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Connect your wallet software (like Sparrow or Specter) directly to your own <a href="https://bitcoincore.org/" rel="noopener noreferrer" target="_blank">Bitcoin Core</a> full node instead of relying on third-party servers. <strong class="pros">Maximizes privacy and trustlessness.</strong> +</p> +<button aria-controls="collapseAdvNode" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvNode" data-bs-toggle="collapse" type="button"> + Why Run a Node? <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvNode"> +<h6>Benefits:</h6> +<ul> +<li><strong>Privacy:</strong> Your wallet doesn't broadcast your addresses and transaction history to company servers.</li> +<li><strong>Verification:</strong> Your node independently validates all Bitcoin rules and transactions; you don't trust someone else's node.</li> +<li><strong>Network Support:</strong> Helps strengthen the decentralized Bitcoin network.</li> +</ul> +<h6>Requirements:</h6> +<ul> +<li>Requires dedicated hardware (like a Raspberry Pi or old computer), sufficient internet bandwidth, and storage space.</li> +<li>Easier setup options exist (e.g., <a href="https://umbrel.com/" rel="noopener noreferrer" target="_blank">Umbrel</a>, <a href="https://start9.com/" rel="noopener noreferrer" target="_blank">Start9</a>).</li> +<li>Requires compatible wallet software.</li> +<li>Resource: <a href="https://bitcoin.org/en/full-node#choose-your-node" rel="noopener noreferrer" target="_blank">Node Implementation Options</a></li> +</ul> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-coincontrol"> +<div class="card-body"> +<h5><i class="bi bi-vinyl-fill"></i> Coin Control (UTXO Management)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Manually selecting which specific "chunks" of Bitcoin (<span class="term">UTXOs</span>) are used as inputs when creating a transaction. Useful for advanced privacy and fee management. + </p> +<button aria-controls="collapseAdvCoinControl" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvCoinControl" data-bs-toggle="collapse" type="button"> + Why Use It? <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvCoinControl"> +<h6>Benefits:</h6> +<ul> +<li><strong>Privacy:</strong> Avoids linking UTXOs from different sources together in one transaction, which can reveal information about your holdings. Allows separating funds (e.g., KYC vs non-KYC - *note: advanced topic with limits*).</li> +<li><strong>Fee Management:</strong> Can sometimes help optimize transaction size and cost by choosing specific UTXOs.</li> +<li><strong>Labeling:</strong> Allows you to label UTXOs with their source or purpose for better tracking.</li> +</ul> +<p>Requires wallet software that supports this feature (e.g., <a href="#card-compare-app-electrum">Electrum</a>, <a href="#card-compare-app-sparrow">Sparrow</a>, <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank">Specter</a>).</p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-psbt"> +<div class="card-body"> +<h5><i class="bi bi-file-binary-fill"></i> PSBT (Partially Signed Bitcoin Tx)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + A standard format (<a href="https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki" rel="noopener noreferrer" target="_blank">BIP-174</a>) for transactions that are not yet fully signed. Essential for <span class="term">air-gapped</span> and <span class="term">multisig</span> workflows. + </p> +<button aria-controls="collapseAdvPsbt" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvPsbt" data-bs-toggle="collapse" type="button"> + How It's Used <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvPsbt"> +<h6>Common Workflows:</h6> +<ul> +<li><strong>Air-Gap Signing:</strong> 1. Create unsigned PSBT online. 2. Move PSBT file/QR to offline signer. 3. Sign PSBT offline. 4. Move signed PSBT back online. 5. Broadcast.</li> +<li><strong>Multisignature Signing:</strong> 1. Create unsigned PSBT. 2. Pass to Signer 1 -> Signs -> Partially Signed PSBT. 3. Pass to Signer 2 -> Signs -> Fully Signed PSBT (if 2-of-2). 4. Broadcast.</li> +</ul> +<p>Facilitates complex signing arrangements without exposing keys online.</p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-fee-bump"> +<div class="card-body"> +<h5><i class="bi bi-graph-up-arrow"></i> Fee Bumping (RBF / CPFP)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Techniques to speed up a stuck (unconfirmed) transaction by increasing the fee. + </p> +<button aria-controls="collapseFeeBump" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseFeeBump" data-bs-toggle="collapse" type="button"> + How It Works <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseFeeBump"> +<h6>Methods:</h6> +<ul> +<li><span class="term">RBF (Replace-By-Fee):</span> If your wallet enabled RBF (<a href="https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki" rel="noopener noreferrer" target="_blank">BIP-125</a>) when sending, you can broadcast a *new version* of the same transaction with a higher fee. Miners will prioritize the higher-fee version.</li> +<li><span class="term">CPFP (Child-Pays-For-Parent):</span> If you received a transaction that is stuck, you can spend *that* incoming UTXO (even before it confirms) in a *new* transaction with a very high fee. Miners are incentivized to mine the stuck parent transaction so they can also mine the high-fee child transaction.</li> +</ul> +<p>Requires wallet support for these features.</p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-shamir"> +<div class="card-body"> +<h5><i class="bi bi-intersect"></i> Shamir Backup (Seed Splitting)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + Splits your seed phrase backup into multiple unique 'shares' (e.g., 3-of-5). You need a certain threshold of shares (e.g., 3 out of the 5) to recover the wallet. Increases redundancy. + </p> +<button aria-controls="collapseAdvShamir" aria-expanded="false" class="btn btn-sm details-toggle" data-bs-target="#collapseAdvShamir" data-bs-toggle="collapse" type="button"> + Pros & Cons <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAdvShamir"> +<h6>How it Helps:</h6> +<ul> +<li><strong class="pros">Redundancy:</strong> You can lose some shares (less than the threshold) and still recover your funds.</li> +<li><strong class="pros">Security:</strong> An attacker needs to find multiple shares (the threshold number) to steal funds, not just one backup.</li> +</ul> +<h6>Considerations:</h6> +<ul> +<li><strong class="cons">Complexity:</strong> More complex to set up and recover than a standard BIP-39 seed phrase.</li> +<li><strong class="cons">Compatibility:</strong> Less widely supported by wallets. Primarily associated with Trezor hardware wallets (<a href="https://github.com/satoshilabs/slips/blob/master/slip-0039.md" rel="noopener noreferrer" target="_blank">SLIP-39 standard</a>).</li> +<li>Still requires careful management of the individual shares.</li> +</ul> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-advanced" id="card-adv-testnet"> +<div class="card-body"> +<h5><i class="bi bi-joystick"></i> Testnet (Practice Network)</h5> +<div class="card-content-wrapper"> +<p class="summary"> + A parallel Bitcoin network where the coins have no real-world value. Excellent for safely testing wallet features, practicing recovery procedures, or learning without risking real money. + </p> +</div> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-comparison" data-section-id="section-comparison"> +<h2 class="section-title" id="section-comparison"> +<i class="bi bi-motherboard-fill"></i> // VIII. Hardware Wallet Comparison + </h2> +<div class="row"> +<div class="col-12"> +<div class="info-card btc-type-comparison" id="card-compare-factors"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-sliders"></i> How to Choose a Hardware Wallet</h5> +<div class="card-content-wrapper"> +<p class="summary text-center"> + Consider: Security Model (Chip Type, Code Audits), Bitcoin Focus vs Multi-Coin, Air-Gap Capability, User Experience, Advanced Features (Multisig, Passphrase), Price, Vendor Reputation. + </p> +<button aria-controls="collapseCompareFactors" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseCompareFactors" data-bs-toggle="collapse" type="button"> + Factors Explained <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseCompareFactors"> +<h6>Key Comparison Factors:</h6> +<ul> +<li><strong>Security Chip:</strong> <span class="term">Secure Element (SE)</span> is a dedicated, tamper-resistant chip (often closed-source) vs. a <span class="term">General Purpose Microcontroller (MCU)</span> which relies more on software hardening (can be more open). Both have pros/cons.</li> +<li><strong>Source Code:</strong> Is the firmware (<span class="term">Open Source</span>) verifiable by the public, or (<span class="term">Closed Source</span>) requiring trust in the vendor? Hardware design openness also varies.</li> +<li><strong>Coin Support:</strong> <span class="term">Bitcoin-Only</span> devices have a reduced attack surface (less code complexity). <span class="term">Multi-Coin</span> devices offer convenience if you hold other assets but add complexity.</li> +<li><strong>Air-Gap Features:</strong> Does it support true air-gapped operation (via SD card/QR codes like <a href="#card-compare-coldcard">Coldcard</a>) or does it require USB/Bluetooth?</li> +<li><strong>User Experience (UX):</strong> Ease of setup, screen quality, button usability, companion software quality.</li> +<li><strong>Advanced Features:</strong> Support for Passphrases, Multisig (PSBT), Coin Control, Shamir Backup (SLIP-39), etc.</li> +<li><strong>Price Point.</strong></li> +<li><strong>Vendor Reputation & Trust:</strong> Company history, security track record, community perception, responsiveness to issues.</li> +</ul> +<p><strong class="term">No single "best" wallet exists. Choose based on your technical comfort, security needs, budget, and desired features.</strong></p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-trezor"> +<div class="card-body"> +<h5><i class="bi bi-unlock-fill"></i> Trezor (Safe 5 / Safe 3 / Model T)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Long history, Open Source FW (device), User-friendly Suite, Passphrase (All). Safe 5: Large Color Touchscreen, Haptic feedback, Shamir/Enhanced Backup. Safe 3/5: Secure Element Option. Model T: Shamir Backup.</span> +<span class="cons">[-] Safe 3/5 SE firmware is closed source. Model T uses MCU (less physical tamper resistance vs SE). No native air-gap mode (USB required). Safe 5 is higher priced.</span> +</p> +<p><a href="https://trezor.io/" rel="noopener noreferrer" target="_blank">trezor.io</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-coldcard"> +<div class="card-body"> +<h5><i class="bi bi-calculator-fill"></i> Coldcard (Mk4 / Q1)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Bitcoin-Only (reduced attack surface), Strong security reputation, True Air-Gap (SD card, NFC, USB-PSBT), Excellent PSBT/Multisig support, Open Source Firmware, Dual Secure Elements (Mk4/Q1), Physical security (PIN, Duress PIN, Brick Me PIN). Q1 adds QWERTY keyboard, larger screen.</span> +<span class="cons">[-] Steeper learning curve than others, Requires coordinator software (e.g., Sparrow, Specter), Basic UI (functional, not fancy), Q1 is larger and more expensive.</span> +</p> +<p><a href="https://coldcard.com/" rel="noopener noreferrer" target="_blank">coldcard.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-bitkey"> +<div class="card-body"> +<h5><i class="bi bi-key-fill"></i> Bitkey</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Beginner-friendly setup, No user-managed seed phrase (removes major user error point), Simple hardware (fingerprint), Recovery assistance via 2-of-3 multisig (Mobile Key, Hardware Key, Server Key), Integration with partners (e.g., Cash App, Coinbase).</span> +<span class="cons">[-] **Not traditional self-custody:** Relies on a 2-of-3 multisig where Block/Bitkey holds one server key, introducing counterparty risk (server availability, policy enforcement/limits, potential censorship). Mobile key is hot. Hardware key doesn't operate standalone like traditional HWs. Requires server interaction for signing/recovery. Closed-source components (especially server-side). Different trust model than fully user-controlled wallets.</span> +</p> +<p><a href="https://bitkey.world/" rel="noopener noreferrer" target="_blank">bitkey.world</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-ledger"> +<div class="card-body"> +<h5><i class="bi bi-usb-fill"></i> Ledger (Nano S+ / Nano X / Stax)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Uses Secure Element (SE) chip, Wide Coin Support, Popular/Well-known brand, Polished Ledger Live companion app (Desktop/Mobile), Bluetooth (Nano X).</span> +<span class="cons">[-] Closed Source device firmware & SE firmware, Requires trust in vendor. Controversial 'Ledger Recover' service (opt-in seed fragment backup). Past *customer data* breach (not keys). Heavy reliance on Ledger Live app. Multi-coin support increases code complexity/attack surface vs Bitcoin-only. Stax significantly delayed.</span> +</p> +<p><a href="https://www.ledger.com/" rel="noopener noreferrer" target="_blank">ledger.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-bitbox"> +<div class="card-body"> +<h5><i class="bi bi-box-fill"></i> BitBox02 (Bitcoin-Only Ed.)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Strong security focus (SE + Open FW parts), Minimalist design, BTC-Only version available, Good companion app.</span> +<span class="cons">[-] Requires BitBoxApp, USB connection (no true air-gap).</span> +</p> +<p><a href="https://bitbox.swiss/" rel="noopener noreferrer" target="_blank">bitbox.swiss</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-seedsigner"> +<div class="card-body"> +<h5><i class="bi bi-qr-code-scan"></i> Seedsigner (DIY)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Very Low Cost, DIY/Educational, Fully Air-Gapped via QR codes (stateless option), Fully Open Source HW & SW.</span> +<span class="cons">[-] Requires assembly & setup, UX depends on components used, QR scanning can be slower.</span> +</p> +<p><a href="https://seedsigner.com/" rel="noopener noreferrer" target="_blank">seedsigner.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-jade"> +<div class="card-body"> +<h5><i class="bi bi-camera-fill"></i> Blockstream Jade</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Affordable, Bitcoin-focused, Optional QR Air-Gap mode, Open Source HW/FW, Stateless/Server-assisted security model option.</span> +<span class="cons">[-] Server assistance ("Blind Oracle") requires trust (optional unlock), Basic UI.</span> +</p> +<p><a href="https://blockstream.com/jade/" rel="noopener noreferrer" target="_blank">blockstream.com/jade/</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-passport"> +<div class="card-body"> +<h5><i class="bi bi-passport-fill"></i> Foundation Passport (Batch 2)</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Premium build quality, Bitcoin-focused, Air-Gapped via QR/SD card, Strong security emphasis, Open Source FW.</span> +<span class="cons">[-] Higher price point, Relies on companion app/coordinator SW.</span> +</p> +<p><a href="https://foundationdevices.com/" rel="noopener noreferrer" target="_blank">foundationdevices.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-choice"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-check2-square"></i> Making Your Choice</h5> +<div class="card-content-wrapper"> +<p class="summary text-center"> + Factor in your technical skills, budget, need for other coins, desire for air-gap, open source preferences, advanced feature needs (like multisig), and trust in the vendor. <strong class="term">Analyze the tradeoffs based on your personal threat model and use case.</strong> +</p> +</div> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-comparison" data-section-id="section-app-comparison"> +<h2 class="section-title" id="section-app-comparison"> +<i class="bi bi-grid-1x2-fill"></i> // IX. App Wallet Comparison (Software/Mobile) + </h2> +<div class="row"> +<div class="col-12"> +<div class="info-card btc-type-comparison" id="card-app-compare-factors"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-sliders"></i> How to Choose an App Wallet</h5> +<div class="card-content-wrapper"> +<p class="summary text-center"> + Consider: Platform (Desktop/Mobile), Ease of Use, Features (Lightning, Coin Control, Node Connect, HW Support), Security Model, Open Source Status, Vendor Reputation. <strong class="critical">App wallets carry inherent online risks; hardware wallets are advised for substantial amounts. Focus on Non-Custodial options where YOU control the keys/seed.</strong> +</p> +<button aria-controls="collapseAppCompareFactors" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseAppCompareFactors" data-bs-toggle="collapse" type="button"> + Factors Explained <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseAppCompareFactors"> +<h6>Key Comparison Factors for App Wallets:</h6> +<ul> +<li><strong>Platform:</strong> Is it available for your device (iOS, Android, Windows, macOS, Linux)?</li> +<li><strong>User Experience (UX):</strong> Is it intuitive for beginners or geared towards advanced users?</li> +<li><strong>Key Features:</strong> +<ul> +<li><span class="term">Lightning Network:</span> Does it support faster, cheaper Layer 2 payments?</li> +<li><span class="term">Coin Control:</span> Can you manually select UTXOs for privacy/fee management?</li> +<li><span class="term">Full Node Connection:</span> Can it connect to your own Bitcoin node for maximum privacy?</li> +<li><span class="term">Hardware Wallet Integration:</span> Can it act as an interface for your hardware wallet?</li> +<li><span class="term">Multisig Support:</span> Does it facilitate setting up or signing multisignature transactions?</li> +</ul> +</li> +<li><strong>Security Model:</strong> How are keys stored? Does it offer extra security features (e.g., Tor support)?</li> +<li><strong>Open Source:</strong> Is the code publicly available for review? This increases transparency and trust.</li> +<li><strong>Reputation:</strong> Vendor track record, community perception, responsiveness to issues.</li> +</ul> +<p><strong class="term">Prioritize wallets that are non-custodial, well-reviewed, and ideally open-source. Test with small amounts first.</strong></p> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-sparrow"> +<div class="card-body"> +<h5><i class="bi bi-tools"></i> Sparrow Wallet</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Desktop (Win/Mac/Linux), Feature-Rich (Coin Control, Node, HW, Multisig), Privacy focus (Tor), Open Source.</span> +<span class="cons">[-] Desktop only, Can be complex for beginners.</span> +</p> +<p><a href="https://sparrowwallet.com/" rel="noopener noreferrer" target="_blank">sparrowwallet.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-bluewallet"> +<div class="card-body"> +<h5><i class="bi bi-phone-fill"></i> BlueWallet</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Mobile (iOS/Android), User-Friendly, Supports Lightning (custodial LDK node option), HW integration, Multisig Vaults, Open Source.</span> +<span class="cons">[-] Some advanced features less obvious, LN is custodial by default (but configurable).</span> +</p> +<p><a href="https://bluewallet.io/" rel="noopener noreferrer" target="_blank">bluewallet.io</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-electrum"> +<div class="card-body"> +<h5><i class="bi bi-pc-display"></i> Electrum</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Desktop (Win/Mac/Linux), Mobile (Android), Long-standing, Advanced features (Coin Control, LN, Multisig, HW support), Open Source.</span> +<span class="cons">[-] UI can feel dated/complex for beginners, relies on Electrum servers by default (can connect to own node).</span> +</p> +<p><a href="https://electrum.org/" rel="noopener noreferrer" target="_blank">electrum.org</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-muun"> +<div class="card-body"> +<h5><i class="bi bi-recycle"></i> Muun Wallet</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Mobile (iOS/Android), Very Simple UI, Seamless On-chain/Lightning handling (via submarine swaps), Non-custodial LN.</span> +<span class="cons">[-] Fewer advanced features (no coin control/node connect), Unique backup method (Emergency Kit + Email/Password or Social Recovery - understand it!).</span> +</p> +<p><a href="https://muun.com/" rel="noopener noreferrer" target="_blank">muun.com</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-green"> +<div class="card-body"> +<h5><i class="bi bi-shield-check"></i> Blockstream Green</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Mobile (iOS/Android), Desktop (Limited), Strong focus on Multisig security (2-of-2 with server, or 2-of-3), HW support, Tor support, Open Source.</span> +<span class="cons">[-] Default multisig relies on Blockstream server for one signature (2FA helps), Fewer features than Sparrow/Electrum.</span> +</p> +<p><a href="https://blockstream.com/green/" rel="noopener noreferrer" target="_blank">blockstream.com/green</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-compare-app-nunchuk"> +<div class="card-body"> +<h5><i class="bi bi-diagram-3"></i> Nunchuk</h5> +<div class="card-content-wrapper"> +<p class="summary"> +<span class="pros">[+] Mobile (iOS/Android), Desktop (Win/Mac/Linux), Strong focus on Collaborative Multisig, Intuitive multisig setup, HW support, Air-gapped signing option.</span> +<span class="cons">[-] Primarily designed for multisig (can do single sig), Subscription model for some features.</span> +</p> +<p><a href="https://nunchuk.io/" rel="noopener noreferrer" target="_blank">nunchuk.io</a></p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-comparison comparison-item" id="card-app-compare-choice"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-check2-square"></i> Making Your Choice</h5> +<div class="card-content-wrapper"> +<p class="summary text-center"> + Choose based on your primary device (mobile/desktop), technical comfort, need for specific features like Lightning or Multisig, and privacy requirements. <strong class="term">Always download from official sources and verify authenticity where possible.</strong> +</p> +</div> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-pitfalls" data-section-id="section-pitfalls"> +<h2 class="section-title" id="section-pitfalls"> +<i class="bi bi-exclamation-diamond-fill"></i> // X. How People Lose Bitcoin (Avoid These!) + </h2> +<div class="row"> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-seed"> +<div class="card-body"> +<h5><i class="bi bi-journal-x"></i> Seed Phrase Loss / Compromise</h5> +<div class="card-content-wrapper"> +<p class="summary"><strong class="cons">#1 CAUSE OF LOSS:</strong> Losing the physical backup, damage (fire/water), incorrect transcription, storing it digitally (photo/file/cloud -> HACKED), forgetting passphrase.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-phishing"> +<div class="card-body"> +<h5><i class="bi bi-broadcast"></i> Phishing / Scams</h5> +<div class="card-content-wrapper"> +<p class="summary"><strong class="cons">#2 CAUSE OF LOSS:</strong> Being tricked into revealing your seed phrase or private keys to fake websites, fake apps, fake support agents, or malicious software.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-malware"> +<div class="card-body"> +<h5><i class="bi bi-virus"></i> Malware on Computer/Phone</h5> +<div class="card-content-wrapper"> +<p class="summary">Viruses stealing keys from software wallets, clipboard hijackers changing pasted addresses, fake wallet apps, keyloggers capturing passwords.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-physical"> +<div class="card-body"> +<h5><i class="bi bi-person-fill-x"></i> Physical Theft / Coercion</h5> +<div class="card-content-wrapper"> +<p class="summary">Theft of poorly secured seed phrase backups, theft of hardware wallet (PIN/Passphrase is defense), being forced to reveal keys ("$5 wrench attack").</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-device"> +<div class="card-body"> +<h5><i class="bi bi-hdd-rack-fill"></i> Device Issues (Without Backup)</h5> +<div class="card-content-wrapper"> +<p class="summary">Forgetting PIN after too many tries (requires seed restore), device failure/damage <span class="term">without having a verified seed backup</span>, accidental factory reset.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-estate"> +<div class="card-body"> +<h5><i class="bi bi-person-slash"></i> Lack of Inheritance Plan</h5> +<div class="card-content-wrapper"> +<p class="summary">Owner passes away or becomes incapacitated without leaving clear, secure instructions for heirs to access the funds. Bitcoin becomes permanently lost.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-supply"> +<div class="card-body"> +<h5><i class="bi bi-truck"></i> Supply Chain / Bad Vendor</h5> +<div class="card-content-wrapper"> +<p class="summary">Receiving a tampered hardware wallet (always buy direct!), using insecure or malicious wallet software from unknown sources.</p> +</div> +</div> +</div> +</div> +<div class="col-lg-4 col-md-6"> +<div class="info-card btc-type-pitfall" id="card-pitfall-summary"> +<div class="card-body"> +<h5><i class="bi bi-shield-exclamation"></i> Prevention is Key</h5> +<div class="card-content-wrapper"> +<p class="summary">Most losses are preventable through careful seed phrase management, vigilance against scams, using reputable hardware, and having robust backup plans.</p> +</div> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-glossary" data-section-id="section-glossary"> +<h2 class="section-title" id="section-glossary"> +<i class="bi bi-book-half"></i> // XI. Terminology Glossary + </h2> +<div class="row"> +<div class="col-12"> +<div class="info-card btc-type-glossary" id="card-glossary"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-translate"></i> Key Terms Defined</h5> +<div class="card-content-wrapper"> +<p class="summary text-center">Quick definitions for common Bitcoin and wallet terms used in this guide.</p> +<button aria-controls="collapseGlossary" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseGlossary" data-bs-toggle="collapse" type="button"> + View Glossary <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseGlossary"> +<dl> +<dt>Address</dt><dd>Identifier used to receive Bitcoin (e.g., starts with 1, 3, bc1q, bc1p). Generated from your public key.</dd> +<dt>Air Gap</dt><dd>Keeping a device (like a hardware wallet or dedicated signing computer) physically isolated from network connections (internet, Bluetooth).</dd> +<dt>BIP (Bitcoin Improvement Proposal)</dt><dd>Standards documents for the Bitcoin protocol (e.g., BIP-32, BIP-39).</dd> +<dt>BIP-32</dt><dd>Standard for Hierarchical Deterministic (HD) wallets, allowing many keys to be derived from a single master seed.</dd> +<dt>BIP-39</dt><dd>Standard for mnemonic seed phrases (12/24 words) used to back up and recover HD wallets.</dd> +<dt>BIP-44/84/86</dt><dd>Standards defining specific ways (derivation paths) to organize keys for different address types (Legacy, SegWit, Taproot) within a BIP-32 wallet.</dd> +<dt>Bitcoin Core</dt><dd>The primary, reference implementation of the Bitcoin full node software.</dd> +<dt>Block Explorer</dt><dd>A website or tool used to view information on the public blockchain (transactions, addresses, blocks).</dd> +<dt>Blockchain</dt><dd>The distributed, public, and immutable ledger that records all Bitcoin transactions.</dd> +<dt>Cold Storage</dt><dd><strong class="term">Storing private keys completely offline, away from internet connections.</strong> The most secure way to hold Bitcoin, typically achieved using hardware wallets or fully air-gapped devices.</dd> +<dt>Coin Control</dt><dd>Manually selecting specific UTXOs (unspent chunks of Bitcoin) to use as inputs when creating a transaction.</dd> +<dt>Confirmation</dt><dd>The inclusion of a transaction in a block added to the blockchain. More confirmations increase transaction finality.</dd> +<dt>CPFP (Child-Pays-For-Parent)</dt><dd>A fee-bumping technique where you spend an unconfirmed incoming transaction (the 'child') with a high fee, incentivizing miners to confirm both the child and its stuck 'parent'.</dd> +<dt>Custodial</dt><dd>A service where a third party (like an exchange) holds your private keys for you. <strong class="critical">You don't truly control the Bitcoin; "Not your keys, not your coins."</strong></dd> +<dt>Derivation Path</dt><dd>A specific "route" defined by standards like BIP-44/84/86, telling the wallet how to find/generate specific keys/addresses from the master seed (e.g., m/84'/0'/0'/0/0).</dd> +<dt>Fee Rate (sat/vB)</dt><dd>The price paid for transaction inclusion, measured in satoshis per virtual byte of transaction data size.</dd> +<dt>Full Node</dt><dd>Software that downloads and independently validates the entire Bitcoin blockchain according to the network's consensus rules.</dd> +<dt>Hardware Wallet</dt><dd><strong class="term">A physical device designed to securely store private keys offline (cold storage) and sign transactions without exposing keys to a connected computer/phone.</strong> The recommended standard for significant holdings.</dd> +<dt>HD Wallet (Hierarchical Deterministic)</dt><dd>A wallet using BIP-32, where all keys and addresses are derived from a single master seed (backed up by the BIP-39 seed phrase).</dd> +<dt>Hot Wallet</dt><dd><strong class="term">A wallet where the private keys are stored on a device that is connected to the internet (e.g., software wallets on phones/computers).</strong> Convenient for spending, but carries higher risk than cold storage.</dd> +<dt>Keys (Private/Public)</dt><dd>Cryptographic pair: Private Key (secret, signs transactions), Public Key (sharable, derives addresses).</dd> +<dt>Mempool</dt><dd>The "waiting room" for broadcasted transactions before they are confirmed in a block by miners.</dd> +<dt>Multisignature (Multisig)</dt><dd>A setup requiring signatures from multiple private keys (M out of N total keys, e.g., 2-of-3) to authorize a transaction.</dd> +<dt>Non-Custodial</dt><dd>A wallet where <strong class="term">YOU</strong> control your own private keys and seed phrase (<span class="term">Self-Custody</span>). This cheatsheet focuses on non-custodial solutions.</dd> +<dt>OPSEC (Operations Security)</dt><dd>Practices and procedures to protect sensitive information (like your seed phrase and keys) and reduce risks.</dd> +<dt>Passphrase (BIP-39)</dt><dd>An optional, user-defined "25th word" added to the seed phrase to create a hidden wallet. <strong class="critical">Lose the passphrase, lose the funds in that hidden wallet.</strong></dd> +<dt>Private Key</dt><dd>The secret data that proves ownership and allows spending of Bitcoin associated with specific addresses.</dd> +<dt>PSBT (Partially Signed Bitcoin Transaction)</dt><dd>A standard format (BIP-174) for passing transactions between signers or devices without revealing sensitive key information, used in multisig and air-gapped setups.</dd> +<dt>Public Key</dt><dd>Derived from the private key, used to generate receiving addresses. Safe to share.</dd> +<dt>QR Code</dt><dd>A square barcode often used to easily share Bitcoin addresses or transaction data.</dd> +<dt>RBF (Replace-By-Fee)</dt><dd>A fee-bumping technique (BIP-125) allowing you to replace your own unconfirmed transaction with a new one that includes a higher fee.</dd> +<dt>Satoshis (Sats)</dt><dd>The smallest divisible unit of Bitcoin. 1 BTC = 100,000,000 sats.</dd> +<dt>Secure Element (SE)</dt><dd>A specialized, tamper-resistant chip found in some hardware wallets, designed to securely store cryptographic keys.</dd> +<dt>Seed Phrase</dt><dd><strong class="term">The mnemonic backup (usually 12 or 24 words, BIP-39) for your HD wallet's master private key. Your ultimate recovery tool.</strong></dd> +<dt>Self-Custody</dt><dd><strong class="term">The practice of holding and controlling your own private keys, rather than relying on a third party.</strong> Empowers the user but requires responsibility.</dd> +<dt>Shamir Backup (SLIP-39)</dt><dd>A standard for splitting a seed into multiple 'shares', requiring a certain threshold (e.g., 3-of-5) to recover the wallet. Offers redundancy.</dd> +<dt>Signature</dt><dd>A piece of cryptographic data created using a private key to prove ownership and authorize a transaction.</dd> +<dt>Software Wallet</dt><dd>A wallet application running on a general-purpose device like a computer or smartphone (typically a hot wallet).</dd> +<dt>Taproot</dt><dd>A recent Bitcoin protocol upgrade (P2TR addresses, starting bc1p) improving efficiency and privacy potential for complex transactions.</dd> +<dt>Testnet</dt><dd>A parallel Bitcoin network used for testing purposes, where coins have no real value.</dd> +<dt>UTXO (Unspent Transaction Output)</dt><dd>An individual "chunk" of bitcoin recorded on the blockchain that can be spent as an input in a new transaction.</dd> +<dt>Watch-Only Wallet</dt><dd>A wallet loaded only with public keys or addresses. It can track balances and transactions but cannot sign or spend funds.</dd> +</dl> +</div> +</div> +</div> +</div> +</div> +<div class="schema-container cat-resources" data-section-id="section-resources"> +<h2 class="section-title" id="section-resources"> +<i class="bi bi-compass-fill"></i> // XII. Further Resources & Tools + </h2> +<div class="row"> +<div class="col-12"> +<div class="info-card btc-type-resource" id="card-resources"> +<div class="card-body"> +<h5 class="text-center"><i class="bi bi-link-45deg"></i> Recommended Links</h5> +<div class="card-content-wrapper"> +<p class="summary text-center">Links to reputable wallet software, hardware vendors, block explorers, educational sites, and related content.</p> +<button aria-controls="collapseResources" aria-expanded="false" class="btn btn-sm details-toggle mx-auto" data-bs-target="#collapseResources" data-bs-toggle="collapse" type="button"> + Browse Links <i class="bi bi-chevron-down"></i> +</button> +</div> +</div> +<div class="collapse collapse-content" id="collapseResources"> +<h6>A. Recommended Software Wallets (Non-Custodial):</h6> +<ul> +<li>Desktop: <a href="#card-compare-app-sparrow">Sparrow Wallet</a> (Feature-rich, Privacy/Node focus), <a href="#card-compare-app-electrum">Electrum</a> (Long-standing, Advanced), <a href="https://specter.solutions/" rel="noopener noreferrer" target="_blank">Specter Desktop</a> (Multisig/HW focus)</li> +<li>Mobile: <a href="#card-compare-app-bluewallet">BlueWallet</a> (User-friendly, versatile), <a href="#card-compare-app-muun">Muun Wallet</a> (Simple, Lightning focus), <a href="#card-compare-app-green">Blockstream Green</a> (Multisig options)</li> +<li>Multisig Coordinator: <a href="#card-compare-app-nunchuk">Nunchuk</a> (Mobile/Desktop)</li> +</ul> +<h6>B. Reputable Hardware Wallet Vendors (Buy Direct!):</h6> +<ul> +<li><a href="#card-compare-trezor">Trezor</a></li> +<li><a href="#card-compare-coldcard">Coldcard</a> (Coinkite)</li> +<li><a href="#card-compare-ledger">Ledger</a></li> +<li><a href="#card-compare-bitbox">BitBox</a> (Shift Crypto)</li> +<li><a href="#card-compare-jade">Blockstream Jade</a></li> +<li><a href="#card-compare-passport">Foundation Devices</a> (Passport)</li> +<li><a href="#card-compare-seedsigner">Seedsigner</a> (DIY Project)</li> +</ul> +<h6>C. Block Explorers:</h6> +<ul> +<li><a href="https://mempool.space/" rel="noopener noreferrer" target="_blank">mempool.space</a> (Popular, comprehensive)</li> +<li><a href="https://blockstream.info/" rel="noopener noreferrer" target="_blank">Blockstream.info</a></li> +</ul> +<h6>D. Educational Resources:</h6> +<ul> +<li><a href="https://bitcoin.org/en/" rel="noopener noreferrer" target="_blank">Bitcoin.org</a> (Official site, good starting point)</li> +<li><a href="https://bitcoin.page/" rel="noopener noreferrer" target="_blank">bitcoin.page</a> (Curated resources)</li> +<li><a href="https://www.lopp.net/bitcoin-information.html" rel="noopener noreferrer" target="_blank">Lopp.net Bitcoin Resources</a> (Very comprehensive list)</li> +<li><a href="https://en.bitcoin.it/wiki/Main_Page" rel="noopener noreferrer" target="_blank">Bitcoin Wiki</a> (Community-maintained)</li> +<li><a href="https://bitcoinops.org/" rel="noopener noreferrer" target="_blank">Bitcoin Optech</a> (Technical developments)</li> +</ul> +<h6>E. Related Content / Author Links (Original):</h6> +<ul> +<li><a href="https://walletrecovery.info/articles/" rel="noopener noreferrer" target="_blank">WalletRecovery.info Articles</a></li> +<li><a href="https://davidveksler.substack.com/archive" rel="noopener noreferrer" target="_blank">David Veksler Substack Archive</a></li> <li> <a href="bitcoin-exchanges-cards.html" rel="noopener noreferrer" target="_blank"> Bitcoin Exchanges & Crypto Cards Guide </a> </li> - <li> - <a href="https://cheatsheets.davidveksler.com" rel="noopener noreferrer" target="_blank"> - More Cheatsheets - </a> - </li> - </ul> - </div> - </div> - </div> - </div> - </div> - </div> - <footer class="container text-center"> - <div> - <a class="mx-2 link-secondary" href="https://www.linkedin.com/in/davidveksler/" target="_blank" title="David Veksler on LinkedIn"> - <i class="bi bi-linkedin"> - </i> - LinkedIn - </a> - <a class="mx-2 link-secondary" href="https://cheatsheets.davidveksler.com/" title="Browse All Cheatsheets"> - <i class="bi bi-collection"> - </i> - All Cheatsheets - </a> - </div> - </footer> - <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"> - </script> - <script> - document.addEventListener("DOMContentLoaded",()=>{const footerYearEl=document.getElementById("footer-year");footerYearEl&&(footerYearEl.textContent=`Bitcoin Wallet Cheatsheet v2.2 - Secure Self-Custody Guide - © ${new Date().getFullYear()} David Veksler (Content Refined)`);const collapseElements=document.querySelectorAll(".collapse");collapseElements.forEach(collapseEl=>{const button=document.querySelector(`.details-toggle[data-bs-target="#${collapseEl.id}"]`),icon=button?button.querySelector(".bi"):null;if(button&&icon){const updateIcon=isShown=>{icon.classList.toggle("bi-chevron-up",isShown);icon.classList.toggle("bi-chevron-down",!isShown)};updateIcon(collapseEl.classList.contains("show"));collapseEl.addEventListener("show.bs.collapse",()=>updateIcon(!0));collapseEl.addEventListener("hide.bs.collapse",()=>updateIcon(!1))}})}); - </script> - </body> -</html> + +<li><a href="https://cheatsheets.davidveksler.com" rel="noopener noreferrer" target="_blank">More Cheatsheets</a></li> +</ul> +</div> +</div> +</div> +</div> +</div> +</div> +<footer class="container text-center"> +<div> +<a class="mx-2 link-secondary" href="https://www.linkedin.com/in/davidveksler/" target="_blank" title="David Veksler on LinkedIn"> +<i class="bi bi-linkedin"></i> LinkedIn + </a> +<a class="mx-2 link-secondary" href="https://cheatsheets.davidveksler.com/" title="Browse All Cheatsheets"> +<i class="bi bi-collection"></i> All Cheatsheets + </a> +</div> +</footer> +<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script> +<script> + document.addEventListener("DOMContentLoaded",()=>{const footerYearEl=document.getElementById("footer-year");footerYearEl&&(footerYearEl.textContent=`Bitcoin Wallet Cheatsheet v2.2 - Secure Self-Custody Guide - © ${new Date().getFullYear()} David Veksler (Content Refined)`);const collapseElements=document.querySelectorAll(".collapse");collapseElements.forEach(collapseEl=>{const button=document.querySelector(`.details-toggle[data-bs-target="#${collapseEl.id}"]`),icon=button?button.querySelector(".bi"):null;if(button&&icon){const updateIcon=isShown=>{icon.classList.toggle("bi-chevron-up",isShown);icon.classList.toggle("bi-chevron-down",!isShown)};updateIcon(collapseEl.classList.contains("show"));collapseEl.addEventListener("show.bs.collapse",()=>updateIcon(!0));collapseEl.addEventListener("hide.bs.collapse",()=>updateIcon(!1))}})}); + </script> +</body> +</html> \ No newline at end of file