quizchain2/64

Solved on 2019-07-10 after 12h 12m, key derived from the published recipe. 0.007 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.

JD6

July 10, 2019. A simple one, the author hopes. The question is JD6. Format [solution] TOMI [TOMI], the TOMI field is one word in lower case, digits 215.

No partial hashes this time. Too easy to script, says the author. Is it?

Atbash turns JD into QW. Six letters starting with QW? QWERTY. The TOMI field is keyboard. Or kayboard, as the first version of the update had it. A commenter caught that. "I am crazy, but not THAT crazy."

u/BrainForceOne explained the solve a few hours later. JDJDJD, nothing. Caesar, nothing. Atbash, and the keys sit next to each other. Six keystrokes to the right gave QWERTZ, the Swiss layout. One extra twist and it's QWERTY. AZERTY players probably had no chance.

The claim confirmed at 23:17:02 UTC, ten hours after the post. Same block as block 63. The claim paid 1Thanksg9t4MRoCH2CM3cArWq26JiNvMY, the thank you address from block 5.

IDquizchain2/6464 / 772019-07-10

Puzzle / quizchain2

64

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "1HhtnrYdbu6n…MWeZoFQA",
  status: Status.Solved,
  key: wif("L3Hj2G6FMatr…hHZfptmU").entropy("2154d8826f57…26d89bfa", source("https://www.…lock_64/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-07-10 · 12h 12m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64; Tryquizchain2/64 in the playground

Address: 1HhtnrYdbu6n6BYMuLu4FK1CvCMWeZoFQA

hash160 b73de234e3793e3e82ddd34e058d21a29daea733

Balance

asking the explorer

Key

public key · compressed: 036e1a9394cc9f0ffe31f8048d4bd1d6f5cf53d2c1ee38fe3b878a4dca3879130c
WIF: L3Hj2G6FMatruJkncaNyaXGRhec61jFcXhS753nwUQPyhHZfptmU
entropy hash: 2154d8826f5789ddf09aa1e226d89bfa
entropy source: MD5 of the word, TOMI and a word

Transactions

funding2019-07-100.007 BTC650dfa0f8a…be27a4
claim2019-07-100.00679398 BTC19da61a320…cb0c0d

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
atbashpuzzlereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64

Hints

undated
officialQuestion: JD6
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
Published answer
The solution required to use Atbash on the JD part, which results in QW, then note that the popular QWERTY format has six letters. QWERTY was the solution.
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
Published answer
TOMI was "keyboard", but I have no idea how much resistance that provided to robots.
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
undated
officialTOMI field is one word in lower case.
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64
undated
officialFirst three digits of MD5 hash are 215 (copypasted).
Sourcereddit.com/r/Grycoin/comments/cbgf21/7_mbtc_quizchain2_block_64