quizchain2/28

Solved on 2019-06-04 after 1h 33m, 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.

Verb Noun

June 4, 2019. After two blocks that needed hints, the author wanted one solved at sight. The question is Verb Noun. The TOMI field comes with the format: [solution] TOMI obvious at first sight. Digits 316.

Hints were ready too, 20 and 40 minutes after the post. Needed? Not even close.

Running bitcoin

Hal Finney's famous tweet. Running bitcoin, lower case b, exactly as Hal wrote it.

The post went up at 07:59:43 UTC. The claim confirmed at 08:10:16. Ten and a half minutes.

u/silver_anth asked if Bitcoin, a noun, shouldn't be capitalized. The author: "I used exactly the same format that Hal Finney used." u/BrainForceOne called it perfect for scripters. Maybe. But a block that dies in ten minutes is what the author ordered this time.

IDquizchain2/2828 / 772019-06-04

Puzzle / quizchain2

28

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "18Z3A91W5TDT…WPzuLVh3",
  status: Status.Solved,
  key: wif("KzGzhzaRpAfb…nJqRVnz4").entropy("31606856fd4a…efc2f221", source("https://www.…lock_28/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-04 · 1h 33m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28; Tryquizchain2/28 in the playground

Address: 18Z3A91W5TDT7cEBDkPWaVEy4tWPzuLVh3

hash160 52d7fe0743744adeb1841a744189791a28358ba5

Balance

asking the explorer

Key

public key · compressed: 031db9d4dc1d1fba1966093c948e5987814464aa79e2cf3ff1957b3b224637d83f
WIF: KzGzhzaRpAfb2AzrtKtTkeTnAiLEkWj5dUbfY4krJkYZnJqRVnz4
entropy hash: 31606856fd4a33fc03b9216fefc2f221
entropy source: MD5 of the two words, TOMI and the given field

Transactions

funding2019-06-040.007 BTC35dc236f4c…41dbc1
claim2019-06-040.00659776 BTCf3f3f0698f…777d3c

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28

Hints

undated
officialQuestion: Verb Noun
Sourcereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28
Published answer
Solution was "Running bitcoin", the famous tweet by Hal Finney.
Sourcereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28
undated
officialFormat: [solution] TOMI obvious at first sight
Sourcereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28
undated
officialFirst three digits of MD5 hash are 316.
Sourcereddit.com/r/Grycoin/comments/bwm5hb/7_mbtc_quizchain2_block_28