quizchain2/68

Solved on 2019-07-14 after 13h 40m, 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.

Book title from a number

July 14, 2019. Only ten blocks left, counting stage two of 77. "About two weeks left for Aoi." The question: Book title from a number. No, "Second" is not the answer. Format [solution] TOMI [TOMI], TOMI field in lower case, digits 14a.

No partial hashes at first. Players asked. Eight hours in, the author gave in: solution only 03, TOMI field only 07. "Good occasion to reinforce the misdirection about my sleep patterns."

Seven both ways

The answer is Seveneves, Neal Stephenson's 2015 novel. Read it backwards. Still seven? Yes, and seven is the quizchain's number. So the TOMI field is palindrome.

u/LiaVl got it two and a half hours after the digits. The claim confirmed at 23:38:33 UTC, ten hours and 40 minutes after the post. A palindrome of seven in a run obsessed with sevens. Nice one.

IDquizchain2/6868 / 772019-07-14

Puzzle / quizchain2

68

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "1LQsUnUBDwEq…gnRpSVBm",
  status: Status.Solved,
  key: wif("KzSsEA9wB3fP…DkEBuKB4").entropy("14ad1f06f010…de04f150", source("https://www.…lock_68/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-07-14 · 13h 40m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68; Tryquizchain2/68 in the playground

Address: 1LQsUnUBDwEqAUwsPdA5LVyGNignRpSVBm

hash160 d4ee1844070526e9166ca2f3f7c2b3b7b6959a5d

Balance

asking the explorer

Key

public key · compressed: 021575dc1bfdaae34188dcc36f5a3755059f622e430f74c94621a210ab136c0155
WIF: KzSsEA9wB3fP2dEFVDv8F4UWEDGC1dcKuMYc4m22L5ibDkEBuKB4
entropy hash: 14ad1f06f0103e94a035e265de04f150
entropy source: MD5 of the title, TOMI and a word

Transactions

funding2019-07-140.007 BTCde95c5adba…e9d726
claim2019-07-140.0069065 BTC20411c1386…cba875

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68

Hints

undated
officialQuestion: Book title from a number. No, "Second" is not the answer.
Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68
Published answer
Solution was "Seveneves", TOMI field was "palindrome".
Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68
Published answer
Seveneves TOMI palindrome
Sourcereddit.com/r/Grycoin/comments/cd2qqx/comment/etsk4r0
undated
officialTOMI format is one word in all lowercase.
Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68
undated
officialFIrst three digits of MD5 hash are 14a.
Sourcereddit.com/r/Grycoin/comments/cd2qqx/7_mbtc_quizchain2_block_68
undated
officialSolution only 03, TOMI field only 07.
Sourcereddit.com/r/Grycoin/comments/cd2qqx/comment/ets7qbx