quizchain/72

Solved on 2019-05-02 after 2d 1h 5m, key published. 0.009 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.

After the block

"After the block". 9 mBTC.

Take block and move one letter to the next: clock. The field is c after b. Solved after repeated hints.

IDquizchain/7272 / 772019-04-30 → 2019-05-02

Puzzle / quizchain

72

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("1HYrKjBry5X2…syn7Ya6a", "b588147cacdf…28a01609"),
  status: Status.Solved,
  key: wif("L1NvACvyh4cN…UHWD2xAT").entropy("a500b37a9661…6edc22ba", source("https://www.…lock_72/")),
})

Prize: 0.009 BTC
Key material: wif
Verification: verified
Solved: 2019-05-02 · 2d 1h 5m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/bitcoinpuzzles/comments/bj25fm/9_mbtc_quizchain_block_72; Tryquizchain/72 in the playground

Address: 1HYrKjBry5X252RWgeiijEg4hAsyn7Ya6a

hash160 b588147cacdfc2374cf5bae28aac3c1d28a01609

Balance

asking the explorer

Key

public key · compressed: 03ac1881927c1e795bd90bc0d2602404af39a771c9bef6ba786f22b37a442cdf25
WIF: L1NvACvyh4cNS5mTM4k8PnJphdBcdBWrU1EzcPZttaj9UHWD2xAT
entropy hash: a500b37a9661d9e7956773516edc22ba
entropy source: MD5 of the word, TOMI, three words and the whole block 71 key

Transactions

funding2019-04-300.009 BTCeb82b68f72…41a029
claim2019-05-020.00890796 BTC09a9bbc65c…5e9138

Hints

undated
officialQuestion: After the block
Sourcereddit.com/r/bitcoinpuzzles/comments/bj25fm/9_mbtc_quizchain_block_72
Published answer
Solution was "clock", TOMI was "c after b" to indicate that only one letter is replaced with the one after it in the alphabet.
Sourcereddit.com/r/bitcoinpuzzles/comments/bj25fm/9_mbtc_quizchain_block_72
undated
officialHint live now at Twitter feed. It is 3145
Sourcereddit.com/r/bitcoinpuzzles/comments/bj25fm/comment/em9o86o
undated
officialThis is hint at the solution method, which is similar to blocks 31 and 45. TOMI field has three elements, one of them also in the question.
Sourcereddit.com/r/bitcoinpuzzles/comments/bj25fm/comment/emb6oc1