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BTC\t2e271ac2f63f488cd14112bceeed56f159ecd98cb3ce753f08e2d94bb62714a3\nclaim: https:\u002F\u002Fblockstream.info\u002Ftx\u002F2e271ac2f63f488cd14112bceeed56f159ecd98cb3ce753f08e2d94bb62714a3\nhints: 6\n\tofficial\t-\tQuestion: change to\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\n\tofficial\t-\tFormat: [solution] TOMI [TOMI]\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\n\tofficial\t-\tFirst three digits of MD5 hash are f8e (copypasted).\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\n\tofficial\t-\tUpdate, posted after starting up new: First two digits of solution only are 1d.\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\n\tofficial\t-\tHint 1. Change question from \"change to\" to \"from change to\".\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\n\tofficial\t-\tto\tsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002Fcomment\u002Fevwxwvw\u002F\nexplorer: https:\u002F\u002Fblockstream.info\u002Faddress\u002F13Cv6SXUnzGDT8JHqzzJ8xMPtsSdhJA4wd\nsource: https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\nfiles: 0 files, 3 archived sources; puzzles_assets lists them and reads one by its path","76",false,[],[513,517],{"type":514,"txid":515,"date":497,"amount":495,"url":516},"funding","979670f3d1d4134e7989ed6f4a4370362e15c101711c93675790cf0751c8dbd4","https:\u002F\u002Fblockstream.info\u002Ftx\u002F979670f3d1d4134e7989ed6f4a4370362e15c101711c93675790cf0751c8dbd4",{"type":518,"txid":519,"date":498,"amount":520,"url":521},"claim","2e271ac2f63f488cd14112bceeed56f159ecd98cb3ce753f08e2d94bb62714a3","0.0769981 BTC","https:\u002F\u002Fblockstream.info\u002Ftx\u002F2e271ac2f63f488cd14112bceeed56f159ecd98cb3ce753f08e2d94bb62714a3",[],[524,527,529,531,533,535],{"kind":525,"text":526,"source":506,"shared":510},"official","Question: change to",{"kind":525,"text":528,"source":506,"shared":510},"Format: [solution] TOMI [TOMI]",{"kind":525,"text":530,"source":506,"shared":510},"First three digits of MD5 hash are f8e (copypasted).",{"kind":525,"text":532,"source":506,"shared":510},"Update, posted after starting up new: First two digits of solution only are 1d.",{"kind":525,"text":534,"source":506,"shared":510},"Hint 1. Change question from \"change to\" to \"from change to\".",{"kind":525,"text":536,"source":537,"shared":510},"to","https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002Fcomment\u002Fevwxwvw\u002F",[],"{\n  \"id\": \"quizchain2\u002F76\",\n  \"chain\": \"bitcoin\",\n  \"address\": {\n    \"value\": \"13Cv6SXUnzGDT8JHqzzJ8xMPtsSdhJA4wd\",\n    \"kind\": \"p2pkh\",\n    \"hash160\": \"183125ca1acb9e9b741876aeba5585adbcc4d1c9\"\n  },\n  \"status\": \"claimed\",\n  \"pubkey\": {\n    \"value\": \"02291e71f75948c21e03c9a2faba367129f1a4e75086a780440e0d9b2a6213e0e9\",\n    \"format\": \"compressed\"\n  },\n  \"prize\": 0.077,\n  \"start_date\": \"2019-07-22 03:12:48\",\n  \"solve_date\": \"2026-08-17 09:31:23\",\n  \"solve_time\": 223193915,\n  \"source_url\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\",\n  \"transactions\": [\n    {\n      \"tx_type\": \"funding\",\n      \"txid\": \"979670f3d1d4134e7989ed6f4a4370362e15c101711c93675790cf0751c8dbd4\",\n      \"date\": \"2019-07-22 03:12:48\",\n      \"amount\": 0.077\n    },\n    {\n      \"tx_type\": \"claim\",\n      \"txid\": \"2e271ac2f63f488cd14112bceeed56f159ecd98cb3ce753f08e2d94bb62714a3\",\n      \"date\": \"2026-08-17 09:31:23\",\n      \"amount\": 0.0769981\n    }\n  ],\n  \"hints\": [\n    {\n      \"kind\": \"official\",\n      \"text\": \"Question: change to\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\"\n    },\n    {\n      \"kind\": \"official\",\n      \"text\": \"Format: [solution] TOMI [TOMI]\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\"\n    },\n    {\n      \"kind\": \"official\",\n      \"text\": \"First three digits of MD5 hash are f8e (copypasted).\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\"\n    },\n    {\n      \"kind\": \"official\",\n      \"text\": \"Update, posted after starting up new: First two digits of solution only are 1d.\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\"\n    },\n    {\n      \"kind\": \"official\",\n      \"text\": \"Hint 1. Change question from \\\"change to\\\" to \\\"from change to\\\".\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002F77_mbtc_quizchain2_block_76\u002F\"\n    },\n    {\n      \"kind\": \"official\",\n      \"text\": \"to\",\n      \"source\": \"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FGrycoin\u002Fcomments\u002Fcgcv9i\u002Fcomment\u002Fevwxwvw\u002F\"\n    }\n  ]\n}",[541,548,555],{"kind":542,"label":542,"path":543,"url":544,"format":545,"screenshot":546,"origin":506,"date":547},"source","assets\u002Fsources\u002Fquizchain2\u002Faoinakamoto-2019-07-22-cgcv9i.md","\u002Fassets\u002Fsources\u002Fquizchain2\u002Faoinakamoto-2019-07-22-cgcv9i.md","markdown","\u002Fassets\u002Fsources\u002Fquizchain2\u002Faoinakamoto-2019-07-22-cgcv9i.png","2019-07-22",{"kind":542,"label":549,"path":550,"url":551,"format":545,"screenshot":552,"origin":553,"date":554},"author's post","assets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-05-b9l37o.md","\u002Fassets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-05-b9l37o.md","\u002Fassets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-05-b9l37o.png","https:\u002F\u002Fwww.reddit.com\u002Fr\u002FBitcoin\u002Fcomments\u002Fb9l37o\u002F","2019-04-05",{"kind":542,"label":549,"path":556,"url":557,"format":545,"screenshot":558,"origin":559,"date":560},"assets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-10-ekjcc1k.md","\u002Fassets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-10-ekjcc1k.md","\u002Fassets\u002Fsources\u002Fsatoshi-birthday-quiz\u002Faoinakamoto-2019-04-10-ekjcc1k.png","https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fbitcoinpuzzles\u002Fcomments\u002Fbbij0e\u002Fmeidum_7_mbtc_quizchain_block_18\u002Fekjcc1k\u002F","2019-04-10","quizchain2\u002F75","quizchain2\u002F77",76,77,{"id":566,"title":509,"body":567,"description":645,"extension":650,"meta":651,"navigation":652,"path":653,"seo":654,"stem":488,"__hash__":655},"stories\u002Fquizchain2\u002F76.md",{"type":568,"value":569,"toc":644},"minimark",[570,575,591,605,609,626,630,638],[571,572,574],"h2",{"id":573},"change-to","change to",[576,577,578,579,582,583,586,587,590],"p",{},"July 22, 2019. The last big 77 mBTC block. \"Maybe of medium difficulty.\" The question is two words, ",[580,581,574],"code",{},". Format ",[580,584,585],{},"[solution] TOMI [TOMI]",", digits ",[580,588,589],{},"f8e",". The author planned to shut down soon after, so no hints and no questions.",[576,592,593,594,597,598,601,602,604],{},"That didn't last. \"Started up again\", and with it the digits for the solution alone, ",[580,595,596],{},"1d",". Then the one hint: change the question to ",[580,599,600],{},"from change to",". On August 3 somebody asked if it's \"to\" or \"two\". The answer was one word. ",[580,603,536],{},".",[571,606,608],{"id":607},"the-guess-that-matched-twice","The guess that matched twice",[576,610,611,612,615,616,618,619,622,623,625],{},"u\u002Fmartypyouknowme tried ",[580,613,614],{},"format TOMI before TOMI",". The full MD5 starts with ",[580,617,589],{},". The MD5 of ",[580,620,621],{},"format"," alone starts with ",[580,624,596],{},". Both checksums pass. The address doesn't. \"Got excited when I saw the MD5 hash of f8e. But no cigar.\" Brutal.",[571,627,629],{"id":628},"seven-years-later","Seven years later",[576,631,632,633,637],{},"Then nothing. For seven years the 77 mBTC sat there. The claim finally confirmed at ",[634,635,636],"strong",{},"09:31:23 UTC"," on August 17, 2026. \"Seven years later, congratulations to the solver\", wrote u\u002FJDScreesh a few days after.",[576,639,640,641,643],{},"Who solved it? How? Nobody has said. The record keeps the question, the hints and both checksums, and its status is ",[580,642,491],{},". The coins moved, the answer didn't. Got an idea?",{"title":645,"searchDepth":507,"depth":507,"links":646},"",[647,648,649],{"id":573,"depth":507,"text":574},{"id":607,"depth":507,"text":608},{"id":628,"depth":507,"text":629},"md",{},true,"\u002Fquizchain2\u002F76",{"description":645},"GSATJOmoRAp7bCNCz-uWCUk5hHzujMjcCyELoXGirgc",1791479589391]