2026-04-19T17:59:28Z https://njump.me BIP39 Books https://njump.me/npub1f545lryqeq4s6784dsycg8xqucue29fv9sxt99tzu47kdwuuq8psvu3w8q https://cdn.nostrcheck.me/ede622c9a7ae3199d8c1407cb138c0b5a3403902db371ce951ecf1423803e7a3.webp https://cdn.nostrcheck.me/ede622c9a7ae3199d8c1407cb138c0b5a3403902db371ce951ecf1423803e7a3.webp https://njump.me/nevent1qqs20hy74hcelkqx2836scdm3r63x67uu5djc0x5ueuyz29jnen92nqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxr0x280 Inside &#34;777 Wisdoms for Every Day&#34;:<br/><br/>777 short wisdoms, numbered 1 through 777.<br/><br/>Every single one of the 2048 BIP39 words appears naturally across the pages — you&#39;d never know unless you were looking.<br/><br/>A book that reads like a gift, works like a backup tool. 2026-05-28T15:00:06Z https://njump.me/nevent1qqsduevnt9k4vxr387rvmrjq7g6r29gvaxxthdzefhwjhmzx23szdcszypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxudztky If you disappeared tomorrow, could your family access your Bitcoin?<br/><br/>Most seed backups are written for &#34;me, tomorrow&#34;. Almost none are written for &#34;them, without me&#34;.<br/><br/>Inheritance is the silent failure mode of self-custody. 2026-05-22T12:00:06Z https://njump.me/nevent1qqs2zpdwqy08thhagcad0unhmuagdpjt6mkuk5wr4hz79xu7yj6tjwczypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxxld9xc Three ways a seed backup fails:<br/><br/>Fire: metal survives. Paper and screens don&#39;t.<br/>Flood: laminated paper survives. Ink on raw paper doesn&#39;t.<br/>Theft: nothing survives unless the attacker can&#39;t recognize it as a backup.<br/><br/>Pick a form that beats all three. 2026-05-19T12:00:07Z https://njump.me/nevent1qqs00vzp9vxfz5jvn39zmtff5t06t4l2tnz2te6z36jxptgep3sl4qgzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux5tty28 The $5 wrench attack: someone threatens you until you hand over your keys.<br/><br/>No cryptography stops this — you&#39;re at the wrong end of the wrench.<br/><br/>Plausible deniability rewrites the problem: what the attacker can&#39;t identify, they can&#39;t extract. 2026-04-27T14:00:07Z https://njump.me/nevent1qqstyg6wundht345vcwkyt8w7rk9q27zwdqaztvalw8p7nykr8l4gwczypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxmdfnz4 We publish two BIP39 books. Not translations of each other, not updates — two entirely different books for two kinds of Bitcoiners.<br/><br/>Veit the Fox: a children&#39;s story. If kids are around, this is the book on your shelf.<br/><br/>777 Wisdoms: a quote collection. For everyone else. 2026-04-22T14:00:07Z https://njump.me/nevent1qqs0u8jyfwsh9wjk6ye27wqyeur3squanlqhgqc0urav7e820u3ym0czypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxh7dt7e &#34;But what if you lose the book?&#34;<br/><br/>Buy two copies. Keep one at home, one with someone you trust.<br/><br/>The book alone is useless — just a book.<br/>Your codes alone are useless — just numbers.<br/><br/>Only the combination reveals your seed.<br/><br/>A second copy is a backup, not a vulnerability. 2026-04-20T14:00:00Z https://njump.me/nevent1qqs867lf9ddjh4l5mhk55y5vkke605umnxrc8dd5asp76f2rkertxvgzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux2uc4hn Your @COLDCARDwallet seed is safe at home.<br/><br/>But what about a second copy at a friend&#39;s place?<br/><br/>24 seed words on paper = full access for anyone.<br/><br/>Book Cipher codes on paper = just numbers, worthless without your book.<br/><br/>Same backup. Zero trust required. 2026-04-17T12:00:00Z https://njump.me/nevent1qqsgr8zzfm6f50w0pus0z8aj3u2j2z9g9dt37dmxvqhzpmcpgjzvydqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxqg4pr0 BIP39 isn&#39;t just Bitcoin.<br/><br/>Ethereum, Solana, Cardano, Polkadot — over 100 wallets use the same BIP39 word list for seed phrases.<br/><br/>If your wallet gave you 12 or 24 English words as a backup, chances are they&#39;re from the BIP39 list.<br/><br/>One book. Works for all of them. 2026-04-16T12:00:00Z https://njump.me/nevent1qqspa37gvvgefnkj8ej46vvafhy4fd6hragg3v3xfey2p5gr62fhpmqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxcpjdcc Most Bitcoiners engrave seed words directly on metal.<br/><br/>Anyone who finds it knows exactly what it is.<br/><br/>What if you engraved this instead?<br/>47-3-5, 112-7-2, 8-11-1...<br/><br/>Same fire &amp; water protection. But now nobody knows what they&#39;re looking at.<br/><br/>Book Cipher + Metal. 2026-04-14T12:00:00Z https://njump.me/nevent1qqsxqugkq2d7kuem4fdvez5p5qrtem34557gfqv24czpvft8da4p8gqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxqme907 Traveling with Bitcoin means your seed phrase travels too.<br/><br/>Metal plate in luggage? Obvious at any border.<br/><br/>A wisdom book in your bag? Just a book.<br/><br/>Numbers on a slip of paper? Could be anything.<br/><br/>Book Cipher splits your backup into two innocent pieces — wherever you go. 2026-04-11T12:00:00Z https://njump.me/nevent1qqs2sfh4c0c80u3ll9ut9ntgmlw9mx3edhudwq7zvxmt2zg9jwsypyqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxg337sh The Book Cipher has been used for centuries — by spies, military, and anyone who needed to hide a message in plain sight.<br/><br/>Now it&#39;s being used to protect Bitcoin seed phrases.<br/><br/>Had you heard of the Book Cipher before Bitcoin? 2026-04-09T12:00:00Z https://njump.me/nevent1qqsq4cdgm0rghze6uewlqup3e6f6uq4e5rpg4snq6yu003jdgwlm3eqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux0a92nd Most people know the 24-word seed phrase. Fewer know about the 25th word.<br/><br/>It&#39;s called a passphrase — an extra word YOU choose, added to your 24 words.<br/><br/>Same 24 words + different passphrase = completely different wallet.<br/><br/>One of the most powerful features in Bitcoin security. 2026-04-07T12:00:00Z https://njump.me/nevent1qqsvepchpy7jxyzz9emfy9dsy60de56x6z940cewvqvccqgj8acsnkgzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxej3rpu What looks like a book of daily inspiration — but contains all 2048 BIP39 words?<br/><br/>777 Wisdoms for Every Day. 777 numbered wisdoms. Use the classic Book Cipher to encode your seed phrase as simple number references.<br/><br/>Your backup hides in plain sight. Now on Amazon. 2026-04-05T12:00:00Z https://njump.me/nevent1qqsw0wkue66negynjqlrrzfpscz0ndfpkyggzejd8hsgm6srpehmqzczypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxjgzwxz Back up your seed phrase with a BIP39 Book:<br/><br/>1. Get your 24 seed words from your hardware wallet<br/>2. Open the book, find each word<br/>3. Note the position: page — line — word number<br/>4. Store the number list separately from the book<br/><br/>Done. Your backup is two innocent-looking pieces. 2026-04-04T12:00:00Z https://njump.me/nevent1qqs895accnaz5t5n6e26n76rpmn5f4r3r8nrney6mqfgws7gtze6t3szypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxe69jts &#34;Not your keys, not your coins.&#34;<br/><br/>FTX. Celsius. Mt. Gox. BlockFi.<br/><br/>Every exchange collapse proves the same lesson: if someone else holds your keys, they hold your Bitcoin.<br/><br/>Self-custody is the only way to truly own your coins. But it means one job: protecting your seed phrase. 2026-04-02T12:00:00Z https://njump.me/nevent1qqsrdcey4rjsnc7d0ennmyd53txggr7gnr9729x7lqtluy0pl504cpgzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxqkhw0q Meet Veit the Fox — a children&#39;s book with a secret superpower.<br/><br/>A real story you read to your kids. But hidden inside are all 2048 BIP39 words.<br/><br/>Use it as a Book Cipher to back up your Bitcoin seed phrase — while it sits on your shelf looking like any other bedtime story. 2026-03-31T12:00:00Z https://njump.me/nevent1qqsr2hzdk7gy9mhvzjdxu8punmrd83wu42n4a6e25xmgpgnlva39rdqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxtp2h3j Bitcoin OPSEC rule #1: Don&#39;t let anyone know how much you hold.<br/>Rule #2: Don&#39;t let anyone find your backup.<br/><br/>A Book Cipher splits your backup in two:<br/>- A book on your shelf (looks normal)<br/>- A number list (meaningless without the book)<br/><br/>Two locations. No digital attack surface. 2026-03-28T12:00:00Z https://njump.me/nevent1qqsxql74r2908z34ch70crh9aw6368quptq5aq67lj6ewz35v9gaajqzypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux5gt2qn Metal seed plates are popular. But engraving your 24 seed words on metal has a problem:<br/><br/>Anyone who finds it knows exactly what it is.<br/><br/>A Book Cipher changes this. Instead of words, you store numbers — page, line, word positions. On paper or on metal. 2026-03-27T12:00:00Z https://njump.me/nevent1qqstqz4fuf4nf6jhnk84dduu2zpc3ms900jrv2xr4rx34um4vczfy5szypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsquxrrw5jf The Book Cipher is a centuries-old encryption method — and it&#39;s perfect for seed phrase backup.<br/><br/>How it works:<br/>1. Pick a book<br/>2. Find each word of your seed in the book<br/>3. Write down the position: page-line-word<br/>4. Store the numbers separately from the book 2026-03-25T12:00:00Z https://njump.me/nevent1qqsy3wjv0pwn6kzzvre6spra6dqxr6llhlc8f62rl0kuz4xtkn290kszypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux9r5k7j Your seed phrase is the master key to your Bitcoin.<br/><br/>Storing it in a notes app, cloud drive, or password manager means it lives on a server somewhere — exposed to hacks, breaches, and subpoenas.<br/><br/>Digital backups have digital attack surfaces. Period. 2026-03-23T12:00:00Z https://njump.me/nevent1qqsfjwr2udh27mzeejk32eeegjzz5revhgmgy8sa4qt0y4mvxrvhe3szypxjknuvsryzkrtc74kqnpqucrnrn9g49skqev54vtjh6e4mnsqux5hksd6 Your Bitcoin seed phrase is built from a list of exactly 2,048 English words — defined by an open standard called BIP39.<br/><br/>Anyone who knows these 12 or 24 words controls your Bitcoin. No password reset. No customer support. Just the words. 2026-03-22T12:00:00Z