quizchain2/45

Solved on 2019-06-22 after 1d 15h 22m, 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.

Multiple choice

June 21, 2019. "Satoshi's real identity is:" Four options. Hal Finney, Nick Szabo, Dorian Nakamoto, Craig Wright. The answer is just the letter. The background is in the author's Wattpad story, published the day before. Digits df1.

So the whole fight is the TOMI field. "Very easy", said the author.

Timing of dropout

It wasn't. A day later one hint gave the format: three words in lower case. u/puzzleponky asked if the hash was right at all. The author checked again. Fine. u/BrainForceOne stopped, worried about their brain overheating.

The story says the decisive clue is when Satoshi dropped out. So the answer is a), Hal Finney, and the TOMI field is timing of dropout.

The claim confirmed at 20:34:30 UTC on June 22, 36 hours after the post. u/DanTheDon83 posted it right after. Easy? Sure.

IDquizchain2/4545 / 772019-06-21 → 2019-06-22

Puzzle / quizchain2

45

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "1NbNe8TPBewo…QY7LBeGX",
  status: Status.Solved,
  key: wif("Kwdh6YGsDBk4…SMx8xVJg").entropy("df1ae0a564ff…43a699b3", source("https://www.…lock_45/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-22 · 1d 15h 22m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45; Tryquizchain2/45 in the playground

Address: 1NbNe8TPBewoG31Rf5bCof9Wj1QY7LBeGX

hash160 ecdad933b562a0044fc729fd9cbceaf89c206667

Balance

asking the explorer

Key

public key · compressed: 037ec64356e589c888bcd47a338b0e3a7e9cd4d5e0116c80a812c06a90683585d7
WIF: Kwdh6YGsDBk4A3CKyb9KVftYxR4usAv2YTUDtN3jzE7aSMx8xVJg
entropy hash: df1ae0a564ffed778bee08eb43a699b3
entropy source: MD5 of the letter, TOMI and three words

Transactions

funding2019-06-210.007 BTC93be460b4a…c679f6
claim2019-06-220.006808 BTC31d3f9aebe…46ddb9

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45

Hints

undated
officialQuestion: Satoshi's real identity is:
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
Published answer
Solved half a day after first hint, solution was of course a) and TOMI field was "timing of dropout".
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officiala) Hal Finney
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialb) Nick Szabo
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialc) Dorian Nakamoto
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officiald) Craig Wright
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialFirst three digits of MD5 hash are df1.
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialSolution format is only the letter, like this: a). TOMI field text is all lower case.
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialI already published the necessary background yesterday at the Wattpad story.
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45
undated
officialHint 1: TOMI field format is three words, all in lower case.
Sourcereddit.com/r/Grycoin/comments/c37u67/7_mbtc_quizchain2_block_45