quizchain2/49

Solved on 2019-06-25 after 3h, 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.

Don't

June 25, 2019. "A method similar to the previous one". The question is Don't. Digits 4f1. No partial digits, no format hints. Too easy for that, the author wrote.

Too easy indeed. The format line reads [solution] TOMI Google slogan. The TOMI field, printed right there. The author admitted the mistake in the next post.

Don't be evil

The answer is Don't be evil. A race to confirmation, nothing more.

The claim confirmed at 08:17:27 UTC, 18 minutes after the post. u/puzzleponky got it, by hand, they said. Then they pointed at a double spend attempt with a 3 mBTC fee, hoping some miner would take it. It didn't confirm first. Lucky, this time. A race like this, is it still a puzzle?

IDquizchain2/4949 / 772019-06-25

Puzzle / quizchain2

49

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "1JNoG4tCkwqH…MMDBoeUd",
  status: Status.Solved,
  key: wif("L1w1EzaQwHoE…cRWXUFqT").entropy("4f1cfb8b91af…6318e14b", source("https://www.…lock_49/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-25 · 3h

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49; Tryquizchain2/49 in the playground

Address: 1JNoG4tCkwqH49FWa2vGRzMyd9MMDBoeUd

hash160 be997d3ea67851eee4761efea0ac3adbefc5f90a

Balance

asking the explorer

Key

public key · compressed: 03b8fbb362216c3a76899f28ce5af7f7d9e7f30afdbe61d9f2e925ff4768bd7675
WIF: L1w1EzaQwHoE3rR9xhVQ3Wutamraai25D7U82Z4LH8c6cRWXUFqT
entropy hash: 4f1cfb8b91afad29e9b5490c6318e14b
entropy source: MD5 of the three words, TOMI and two words

Transactions

funding2019-06-250.007 BTCbc25a89a05…824ba3
claim2019-06-250.00681491 BTCa924d7721c…6287bf

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49

Hints

undated
officialQuestion: Don't
Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49
Published answer
Solution was "Don't be evil".
Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49
undated
officialFormat: [solution] TOMI Google slogan
Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49
Published answer
answer was of course: Don't be evil TOMI Google slogan
Sourcereddit.com/r/Grycoin/comments/c54umz/comment/erztw4n
undated
officialFirst three digits of MD5 hash are 4f1.
Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49
undated
officialThis block uses a method similar to the previous one.
Sourcereddit.com/r/Grycoin/comments/c54umz/7_mbtc_quizchain2_block_49