quizchain2/67

Solved on 2019-07-12 after 11h 23m, key derived from the published recipe. 0.077 BTC on Bitcoin.

Story

What the post asked, what the answer turned out to be, and what the chain says happened. The record below holds the data.

An almost perfect anagram

July 12, 2019. Another 77 mBTC block. The cross sum would be 13, unlucky, so it's 77 again, like in the first run. The question: Satoshi is an almost perfect anagram of which name? Format [solution] TOMI [TOMI], digits f47. No partial hashes, it's a big block.

Not solved at sight. Without the TOMI field, says the author, brute force would have taken it by now.

Thomas

The answer is Thomas. And the TOMI field is Hal Finney's full name, as Wikipedia gives it: Harold Thomas Finney II. Hal again. u/puzzleponky found it with Wikipedia and a little help from block 54.

The claim confirmed at 23:46:22 UTC on July 12, 49 minutes after the post. Someone claimed puzzleponky was the author in disguise. "Try Occam's razor", replied u/Quantris.

u/Randomiser reminded everyone that "almost anagrams" were once a joke in the first run. The author had half forgotten. "One of my favorite moments of the whole experience."

IDquizchain2/6767 / 772019-07-12

Puzzle / quizchain2

67

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "18o7TyCU1zkX…Nntb4MAw",
  status: Status.Solved,
  key: wif("KzQPaLLjDdbL…iNk6MHUD").entropy("f4738a19b8ad…a74e9826", source("https://www.…lock_67/")).derived(),
})

Prize: 0.077 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-07-12 · 11h 23m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67; Tryquizchain2/67 in the playground

Address: 18o7TyCU1zkXCiC5sZSyxBFAn3Nntb4MAw

hash160 558169530d1a8c6055063d6515508c53b980cd3f

Balance

asking the explorer

Key

public key · compressed: 02a3de51a75abc63e3c08038ea718b6c11d5cd19c2025a774bf1889b4fdc24946e
WIF: KzQPaLLjDdbLViJsFm4f7Z84cK8rSbod4qMncgUDey7MiNk6MHUD
entropy hash: f4738a19b8ad4b882331cc1ba74e9826
entropy source: MD5 of the name, TOMI and the full name

Transactions

funding2019-07-120.077 BTC4385d66a41…c6b6f2
claim2019-07-120.07683027 BTC6993b18a7f…9b3e96

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67

Hints

undated
officialQuestion: Satoshi is an almost perfect anagram of which name?
Sourcereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67
Published answer
Solution was Thomas and TOMI field was the complete name of Hal FInney as given at WIkipedia, which is Harold Thomas Finney II.
Sourcereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67
Published answer
Solution was "Thomas TOMI Harold Thomas Finney II"
Sourcereddit.com/r/Grycoin/comments/cchy6l/comment/etn39ar
undated
officialFIrst three digits of MD5 hash are f47.
Sourcereddit.com/r/Grycoin/comments/cchy6l/77_mbtc_quizchain2_block_67