[{"data":1,"prerenderedAt":850},["ShallowReactive",2],{"navigation_docs":3,"-collections-quizchain":214,"-collections-quizchain-surround":819,"collection-puzzles-quizchain":824,"collection-facts-quizchain":835},[4,48,136],{"title":5,"path":6,"stem":7,"children":8,"icon":47},"Guide","\u002Fguide","1.guide\u002F01.index",[9,11,15,19,23,27,31,35,39,43],{"title":10,"path":6,"stem":7},"Getting Started",{"title":12,"path":13,"stem":14},"Puzzle records","\u002Fguide\u002Frecords","1.guide\u002F02.records",{"title":16,"path":17,"stem":18},"Registry","\u002Fguide\u002Fregistry","1.guide\u002F03.registry",{"title":20,"path":21,"stem":22},"Lookups and views","\u002Fguide\u002Flookups","1.guide\u002F04.lookups",{"title":24,"path":25,"stem":26},"Verification","\u002Fguide\u002Fverification","1.guide\u002F05.verification",{"title":28,"path":29,"stem":30},"Balances","\u002Fguide\u002Fbalances","1.guide\u002F06.balances",{"title":32,"path":33,"stem":34},"CLI","\u002Fguide\u002Fcli","1.guide\u002F07.cli",{"title":36,"path":37,"stem":38},"Agents","\u002Fguide\u002Fagents","1.guide\u002F08.agents",{"title":40,"path":41,"stem":42},"Custom collections","\u002Fguide\u002Fcustom","1.guide\u002F09.custom",{"title":44,"path":45,"stem":46},"Playground","\u002Fguide\u002Fplayground","1.guide\u002F10.playground","i-lucide-book-open",{"title":49,"path":50,"stem":51,"children":52,"icon":135},"Collections","\u002Fcollections","2.collections\u002F00.index",[53,55,59,63,67,71,75,79,83,87,91,95,99,103,107,111,115,119,123,127,131],{"title":54,"path":50,"stem":51},"Overview",{"title":56,"path":57,"stem":58},"Bitcoin puzzle transaction","\u002Fcollections\u002Fb1000","2.collections\u002F01.b1000",{"title":60,"path":61,"stem":62},"RushWallet contest","\u002Fcollections\u002Frushwallet","2.collections\u002F02.rushwallet",{"title":64,"path":65,"stem":66},"Zden's puzzles","\u002Fcollections\u002Fzden","2.collections\u002F03.zden",{"title":68,"path":69,"stem":70},"Arweave bounties","\u002Fcollections\u002Farweave","2.collections\u002F04.arweave",{"title":72,"path":73,"stem":74},"WarpWallet challenges","\u002Fcollections\u002Fwarp","2.collections\u002F05.warp",{"title":76,"path":77,"stem":78},"Hash collision bounties","\u002Fcollections\u002Fhash_collision","2.collections\u002F06.hash_collision",{"title":80,"path":81,"stem":82},"Ballet wallets","\u002Fcollections\u002Fballet","2.collections\u002F07.ballet",{"title":84,"path":85,"stem":86},"Bitimage","\u002Fcollections\u002Fbitimage","2.collections\u002F08.bitimage",{"title":88,"path":89,"stem":90},"Bitaps mnemonic challenge","\u002Fcollections\u002Fbitaps","2.collections\u002F09.bitaps",{"title":92,"path":93,"stem":94},"GSMG.io puzzle","\u002Fcollections\u002Fgsmg","2.collections\u002F10.gsmg",{"title":96,"path":97,"stem":98},"Bitcoin Movie Enigma","\u002Fcollections\u002Fmovie_enigma","2.collections\u002F11.movie_enigma",{"title":100,"path":101,"stem":102},"Ledger Donjon CTF","\u002Fcollections\u002Fledger_donjon","2.collections\u002F12.ledger_donjon",{"title":104,"path":105,"stem":106},"LuckyLurker","\u002Fcollections\u002Fluckylurker","2.collections\u002F13.luckylurker",{"title":108,"path":109,"stem":110},"Dug","\u002Fcollections\u002Fdug","2.collections\u002F14.dug",{"title":112,"path":113,"stem":114},"Genesis","\u002Fcollections\u002Fgenesis","2.collections\u002F15.genesis",{"title":116,"path":117,"stem":118},"TORCHED H34R7S Bitcoin Puzzle","\u002Fcollections\u002Fcoin_artist","2.collections\u002F16.coin_artist",{"title":120,"path":121,"stem":122},"10 ETH challenge","\u002Fcollections\u002Fmineshop","2.collections\u002F17.mineshop",{"title":124,"path":125,"stem":126},"Birthday quiz","\u002Fcollections\u002Fsatoshi_birthday_quiz","2.collections\u002F18.satoshi_birthday_quiz",{"title":128,"path":129,"stem":130},"Book quiz","\u002Fcollections\u002Fbook_quiz","2.collections\u002F19.book_quiz",{"title":132,"path":133,"stem":134},"Quizchain","\u002Fcollections\u002Fquizchain","2.collections\u002F20.quizchain","i-lucide-layers",{"title":137,"path":138,"stem":139,"children":140,"icon":213},"Authors","\u002Fauthors","3.authors\u002F00.index",[141,142,146,150,154,158,162,166,169,173,177,181,185,189,193,197,201,205,209],{"title":54,"path":138,"stem":139},{"title":143,"path":144,"stem":145},"AoiNakamoto","\u002Fauthors\u002Faoi-nakamoto","3.authors\u002F01.aoi-nakamoto",{"title":147,"path":148,"stem":149},"Bitaps","\u002Fauthors\u002Fbitaps","3.authors\u002F02.bitaps",{"title":151,"path":152,"stem":153},"Bobby Lee","\u002Fauthors\u002Fbobby-lee","3.authors\u002F03.bobby-lee",{"title":155,"path":156,"stem":157},"coin_artist","\u002Fauthors\u002Fcoin-artist","3.authors\u002F04.coin-artist",{"title":159,"path":160,"stem":161},"Corey Phillips","\u002Fauthors\u002Fcorey-phillips","3.authors\u002F05.corey-phillips",{"title":163,"path":164,"stem":165},"Dmitri Kryptokov","\u002Fauthors\u002Fdmitri-kryptokov","3.authors\u002F06.dmitri-kryptokov",{"title":108,"path":167,"stem":168},"\u002Fauthors\u002Fdug","3.authors\u002F07.dug",{"title":170,"path":171,"stem":172},"Genesis author","\u002Fauthors\u002Fgenesis-author","3.authors\u002F08.genesis-author",{"title":174,"path":175,"stem":176},"GSMG.io","\u002Fauthors\u002Fgsmg","3.authors\u002F09.gsmg",{"title":178,"path":179,"stem":180},"Guntis Vitolins","\u002Fauthors\u002Fguntis-vitolins","3.authors\u002F10.guntis-vitolins",{"title":182,"path":183,"stem":184},"Keybase","\u002Fauthors\u002Fkeybase","3.authors\u002F11.keybase",{"title":186,"path":187,"stem":188},"klems","\u002Fauthors\u002Fklems","3.authors\u002F12.klems",{"title":190,"path":191,"stem":192},"Ledger Donjon","\u002Fauthors\u002Fledger-donjon","3.authors\u002F13.ledger-donjon",{"title":194,"path":195,"stem":196},"Paul Jones","\u002Fauthors\u002Fpaul-jones","3.authors\u002F14.paul-jones",{"title":198,"path":199,"stem":200},"Peter Todd","\u002Fauthors\u002Fpeter-todd","3.authors\u002F15.peter-todd",{"title":202,"path":203,"stem":204},"saatoshi_rising","\u002Fauthors\u002Fsaatoshi-rising","3.authors\u002F16.saatoshi-rising",{"title":206,"path":207,"stem":208},"Tiamat","\u002Fauthors\u002Ftiamat","3.authors\u002F17.tiamat",{"title":210,"path":211,"stem":212},"Zden","\u002Fauthors\u002Fzden","3.authors\u002F18.zden","i-lucide-users",{"id":215,"title":132,"body":216,"description":810,"extension":811,"links":812,"meta":813,"navigation":815,"path":133,"seo":816,"stem":134,"__hash__":818},"docs\u002F2.collections\u002F20.quizchain.md",{"type":217,"value":218,"toc":789},"minimark",[219,252,256,261,266,269,281,285,288,292,296,303,306,310,321,325,336,340,344,354,361,365,378,382,386,675,681,707,714,718,724,735,750,759,763,778,782,785],[220,221,222,223,227,228,234,235,239,240,245,246,251],"p",{},"The day after the ",[224,225,226],"a",{"href":129},"book quiz"," ran out its clock, AoiNakamoto shrank the format to one question and called it a chain. ",[224,229,233],{"href":230,"rel":231},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fbitcoinpuzzles\u002Fcomments\u002Fbacd6l\u002Feasy_7_mbtc_quizchain_experiment\u002F",[232],"nofollow","Block 1"," went up on r\u002Fbitcoinpuzzles on April 7, 2019: ",[236,237,238],"strong",{},"7 mBTC",", two answers to pick from, and the post tells you the right one. The hard part was supposed to be somewhere else. ",[224,241,244],{"href":242,"rel":243},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fbitcoinpuzzles\u002Fcomments\u002Fbadtpz\u002Feasy_7_mbtc_quizchain_block_2\u002F",[232],"Block 2"," followed the same morning, same prize, and chained itself to the first one. ",[224,247,250],{"href":248,"rel":249},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fbitcoinpuzzles\u002Fcomments\u002Fbae43s\u002Feasy_7_mbtc_quizchain_block_3\u002F",[232],"Block 3"," chained itself to block 2 an hour later and was swept six minutes after it went up.",[253,254],"collection-facts",{"collection":255},"quizchain",[257,258,260],"h2",{"id":259},"how-block-1-works","How block 1 works",[262,263,265],"h3",{"id":264},"the-answer-is-given-the-address-isnt","The answer is given, the address isn't",[220,267,268],{},"Pick b), \"Satoshi is an anonymous cypherpunk and the first one to succed building private Internet cash.\" (the typo is in the original and in the hash, so leave it alone). Append the last three characters of the author's favorite Bitcoin address, SHA-256 the string, feed the hex to Ian Coleman's BIP39 tool as entropy, and take the first address at the bottom.",[220,270,271,272,276,277,280],{},"The favorite address is the whole puzzle, and the post only says \"good luck finding\" it. The author's solution comment says it was \"apparent from my posting history\": ",[273,274,275],"code",{},"1AndrewYangForPresident2o2o6zmPzd",", a vanity address for the 2020 campaign, so the tail is ",[273,278,279],{},"Pzd",". Same hobby horse as the book quiz, which was about Yang's book.",[262,282,284],{"id":283},"it-was-broken-at-first","It was broken at first",[220,286,287],{},"The post carries an edit: \"I messed up. This quiz as posted was not valid.\" The wording of answer b) got fixed after people had already started, so one commenter found the right address in the author's history, tried its last three characters and got nothing. Hard to blame them. Seven minutes after the author posted the solution, another player showed a screenshot and said they'd had it anyway.",[257,289,291],{"id":290},"how-block-2-works","How block 2 works",[262,293,295],{"id":294},"a-sentence-to-recase","A sentence to recase",[220,297,298,299,302],{},"The post gives one sentence, the first line of the top post in a subreddit the author follows: \"I posted A similar message to the Basecamp, but had to also come visit you all here on Reddit.\" The capital ",[273,300,301],{},"A"," is one letter of the post author's family name. Capitalize the rest of that name the same way and you have the answer.",[220,304,305],{},"The solution the author edited into the post says the name is Yang, so it reads \"I posted A similar messaGe to the Basecamp, but had to also come visit You all here oN Reddit.\" Yang again, the name inside the favorite address of block 1.",[262,307,309],{"id":308},"the-chain-part","The chain part",[220,311,312,313,316,317,320],{},"Append the last three characters of the block 1 private key, ",[273,314,315],{},"Uzp",", SHA-256 the string, use it as entropy. That's the link that makes it a chain: you can't do block 2 without the key of block 1, and that key was public by then. The post says \"Ian Coleman brain wallet tool\", but the address comes out of the BIP39 tool at ",[273,318,319],{},"m\u002F44'\u002F0'\u002F0'\u002F0\u002F0",", the same route as block 1.",[262,322,324],{"id":323},"half-an-hour","Half an hour",[220,326,327,328,331,332,335],{},"Funded at ",[236,329,330],{},"06:57:24 UTC",", posted at 07:03, swept at ",[236,333,334],{},"07:32:15"," for 682,539 satoshis. The thread has no comments. The author edited the post instead: \"Someone has solved block 2 and the funds have been taken\", the solution and the WIF.",[257,337,339],{"id":338},"how-block-3-works","How block 3 works",[262,341,343],{"id":342},"pick-a-number-any-number","Pick a number, any number",[220,345,346,347,350,351,353],{},"No question this time. The post is a funding link and two parts: \"Pick a random 3 digit number\", then the last three characters of the block 2 private key, ",[273,348,349],{},"hBF",". Put them together, SHA-256, entropy, ",[273,352,319],{}," like before. That's a thousand candidates with the other half already public, so a laptop clears it before the kettle boils.",[220,355,356,357,360],{},"The number was ",[273,358,359],{},"777",". In the comments the author admits it: \"Of course I chose a number suited for a lucky guess.\"",[262,362,364],{"id":363},"six-minutes-after-the-post","Six minutes after the post",[220,366,327,367,370,371,374,375,377],{},[236,368,369],{},"07:51:08 UTC",", posted at 07:55, swept at ",[236,372,373],{},"08:01:41"," for 672,314 satoshis. The first comment, at 08:03, just says \"Even few seconds have not passed as it was solved.\" The author's edit has a better theory: the clue went out on Twitter before Reddit, \"maybe the winner got an advantage by looking at my Twitter feed.\" The same edit carries the number, ",[273,376,349],{}," and the WIF.",[257,379,381],{"id":380},"what-the-quizchain-records-carry","What the quizchain records carry",[262,383,385],{"id":384},"a-wif-from-the-thread-entropy-without-a-phrase","A WIF from the thread, entropy without a phrase",[387,388,394],"pre",{"className":389,"code":390,"filename":391,"language":392,"meta":393,"style":393},"language-ts shiki shiki-themes github-light github-light vitesse-dark","export const quizchainBlock1 = bitcoinPuzzle({\n  id: \"quizchain\u002F1\",\n  address: p2pkh(\"16NLaozWwi4JSTRMnMfi3oCkBjXBWVFgYR\", \"3ae1b60c6a83290db2e9c228413750d96be80116\"),\n  sourceUrl: THREAD,\n  startedAt: \"2019-04-07 03:31:37\",\n  status: Status.Solved,\n  pubkey: compressed(\"028a941c0effd36b57654b9bf871817384f5bd06286cebe73096191bc3584acef3\"),\n  key: wif(\"L58cp8Ex3RsTsiKaaeodmu7SetzDzqQkzfX3bAtjdtmu4KbTpUzp\").entropy(\n    \"50611e63a52089bc14e38becb1ad8880be6ba8f4aff0e64223f3dbd740adc1b7\",\n    source(SOLUTION, \"SHA-256 of answer b) with the last three characters of the address appended\"),\n  ),\n  prize: 0.007,\n  transactions: [funding(\u002F* … *\u002F), claim(\u002F* … *\u002F)],\n});\n","src\u002Fcollections\u002Fquizchain\u002F1.ts","ts","",[273,395,396,425,448,482,495,512,532,554,583,596,618,624,638,669],{"__ignoreMap":393},[397,398,401,405,409,413,417,421],"span",{"class":399,"line":400},"line",1,[397,402,404],{"class":403},"sds8u","export",[397,406,408],{"class":407},"sO_1p"," const",[397,410,412],{"class":411},"sHhh0"," quizchainBlock1",[397,414,416],{"class":415},"sLuFV"," =",[397,418,420],{"class":419},"sTnI0"," bitcoinPuzzle",[397,422,424],{"class":423},"s14qF","({\n",[397,426,428,432,435,439,443,445],{"class":399,"line":427},2,[397,429,431],{"class":430},"sC822","  id",[397,433,434],{"class":423},": ",[397,436,438],{"class":437},"s2tGe","\"",[397,440,442],{"class":441},"skmWX","quizchain\u002F1",[397,444,438],{"class":437},[397,446,447],{"class":423},",\n",[397,449,451,454,456,459,462,464,467,469,472,474,477,479],{"class":399,"line":450},3,[397,452,453],{"class":430},"  address",[397,455,434],{"class":423},[397,457,458],{"class":419},"p2pkh",[397,460,461],{"class":423},"(",[397,463,438],{"class":437},[397,465,466],{"class":441},"16NLaozWwi4JSTRMnMfi3oCkBjXBWVFgYR",[397,468,438],{"class":437},[397,470,471],{"class":423},", ",[397,473,438],{"class":437},[397,475,476],{"class":441},"3ae1b60c6a83290db2e9c228413750d96be80116",[397,478,438],{"class":437},[397,480,481],{"class":423},"),\n",[397,483,485,488,490,493],{"class":399,"line":484},4,[397,486,487],{"class":430},"  sourceUrl",[397,489,434],{"class":423},[397,491,492],{"class":411},"THREAD",[397,494,447],{"class":423},[397,496,498,501,503,505,508,510],{"class":399,"line":497},5,[397,499,500],{"class":430},"  startedAt",[397,502,434],{"class":423},[397,504,438],{"class":437},[397,506,507],{"class":441},"2019-04-07 03:31:37",[397,509,438],{"class":437},[397,511,447],{"class":423},[397,513,515,518,520,524,527,530],{"class":399,"line":514},6,[397,516,517],{"class":430},"  status",[397,519,434],{"class":423},[397,521,523],{"class":522},"s9qSu","Status",[397,525,526],{"class":423},".",[397,528,529],{"class":522},"Solved",[397,531,447],{"class":423},[397,533,535,538,540,543,545,547,550,552],{"class":399,"line":534},7,[397,536,537],{"class":430},"  pubkey",[397,539,434],{"class":423},[397,541,542],{"class":419},"compressed",[397,544,461],{"class":423},[397,546,438],{"class":437},[397,548,549],{"class":441},"028a941c0effd36b57654b9bf871817384f5bd06286cebe73096191bc3584acef3",[397,551,438],{"class":437},[397,553,481],{"class":423},[397,555,557,560,562,565,567,569,572,574,577,580],{"class":399,"line":556},8,[397,558,559],{"class":430},"  key",[397,561,434],{"class":423},[397,563,564],{"class":419},"wif",[397,566,461],{"class":423},[397,568,438],{"class":437},[397,570,571],{"class":441},"L58cp8Ex3RsTsiKaaeodmu7SetzDzqQkzfX3bAtjdtmu4KbTpUzp",[397,573,438],{"class":437},[397,575,576],{"class":423},").",[397,578,579],{"class":419},"entropy",[397,581,582],{"class":423},"(\n",[397,584,586,589,592,594],{"class":399,"line":585},9,[397,587,588],{"class":437},"    \"",[397,590,591],{"class":441},"50611e63a52089bc14e38becb1ad8880be6ba8f4aff0e64223f3dbd740adc1b7",[397,593,438],{"class":437},[397,595,447],{"class":423},[397,597,599,602,604,607,609,611,614,616],{"class":399,"line":598},10,[397,600,601],{"class":419},"    source",[397,603,461],{"class":423},[397,605,606],{"class":411},"SOLUTION",[397,608,471],{"class":423},[397,610,438],{"class":437},[397,612,613],{"class":441},"SHA-256 of answer b) with the last three characters of the address appended",[397,615,438],{"class":437},[397,617,481],{"class":423},[397,619,621],{"class":399,"line":620},11,[397,622,623],{"class":423},"  ),\n",[397,625,627,630,632,636],{"class":399,"line":626},12,[397,628,629],{"class":430},"  prize",[397,631,434],{"class":423},[397,633,635],{"class":634},"sw1C9","0.007",[397,637,447],{"class":423},[397,639,641,644,647,650,652,656,659,662,664,666],{"class":399,"line":640},13,[397,642,643],{"class":430},"  transactions",[397,645,646],{"class":423},": [",[397,648,649],{"class":419},"funding",[397,651,461],{"class":423},[397,653,655],{"class":654},"sjj-T","\u002F* … *\u002F",[397,657,658],{"class":423},"), ",[397,660,661],{"class":419},"claim",[397,663,461],{"class":423},[397,665,655],{"class":654},[397,667,668],{"class":423},")],\n",[397,670,672],{"class":399,"line":671},14,[397,673,674],{"class":423},"});\n",[220,676,677,678,680],{},"The author printed the SHA-256 and the WIF, not the mnemonic, so the record has no seed phrase and no derivation path. It keeps what the comment said. Put the hash through the BIP39 tool at ",[273,679,319],{}," and you get that WIF, which is a check anyone can run, not something the thread wrote down.",[220,682,683,684,687,688,690,691,693,694,471,696,698,699,702,703,706],{},"Block 2 has the WIF and the solution, but no hash. The record carries one anyway, ",[273,685,686],{},"e743564b…742e600d",", because the post gives the whole recipe: SHA-256 of the solution with ",[273,689,315],{}," appended. That hash at ",[273,692,319],{}," derives the published WIF, so its source is the thread and its description says how it was made. Block 3 is the same story: the post prints ",[273,695,359],{},[273,697,349],{}," and the WIF, and ",[273,700,701],{},"4b1f8712…b631d743"," is SHA-256 of ",[273,704,705],{},"777hBF",", which derives that WIF.",[220,708,709,710,713],{},"Block 1 has six hints, all the author's, in the order the post reads. The solution string and the favorite address hang off the two hints they answer, sourced to the solution comment, and the first hint's ",[273,711,712],{},"confirmation"," points at the 2023 Wayback capture of the thread.",[262,715,717],{"id":716},"where-the-address-comes-from","Where the address comes from",[220,719,720,721,723],{},"The post never prints an address. It prints the funding transaction, and that transaction sends exactly 700,000 satoshis to ",[273,722,466],{},". The published WIF derives the same address, and the spend exposes the public key on the record.",[220,725,726,727,730,731,734],{},"Blocks 2 and 3 work the same way: their funding transactions send 700,000 satoshis to ",[273,728,729],{},"1JP2qF74zzgz6FMzsmk7nxUeYd7aYCAMHc"," and ",[273,732,733],{},"1Nsi6LxpKqg5CDVrswn6YPNQaGBhdhUCMs",", and the WIF in each post derives its address.",[220,736,737,738,741,742,745,746,749],{},"Timing of block 1, from the chain: funded at ",[236,739,740],{},"03:31:37 UTC",", solution comment at 05:35, swept at ",[236,743,744],{},"05:39:30"," for 672,314 satoshis. The key had been public for four minutes by then, so the chain can't tell you whether the player with the screenshot or a fast stranger did it. The record says ",[273,747,748],{},"solved"," and names nobody.",[220,751,752,753,758],{},"One of the seven comments was already gone when the Wayback Machine took its only capture in 2023, so the post, the edits and the six that survive also live in the repo as ",[224,754,757],{"href":755,"rel":756},"https:\u002F\u002Fgithub.com\u002Fagntn\u002Fpuzzles\u002Fblob\u002Fmain\u002Fassets\u002Fsources\u002Fquizchain\u002Faoinakamoto-2019-04-07.md",[232],"an archived reading copy"," with a screenshot.",[262,760,762],{"id":761},"numbered-like-b1000","Numbered like b1000",[220,764,765,767,768,471,771,730,774,777],{},[273,766,442],{},", and ",[273,769,770],{},"1",[273,772,773],{},"\"1\"",[273,775,776],{},"\"quizchain\u002F1\""," all resolve. 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