quizchain2/35

Solved on 2019-06-11 after 6h 31m, 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.

The first Grycoin

June 11, 2019. The question: in what month will the first Grycoin be mined? The answer looks like June 2019. The TOMI field is a word and a number. Digits 56c, 0 and 3c.

Grycoin is the author's coin from the Wattpad story. The new chapter gave the year, 2020. But the month?

Rapid fire

Hints every few minutes this time. The number has six digits and divides by 21. Then: mining will be outsourced to Bitcoin.

That's the halving. Block 630000, scheduled for May 2020. The answer is May 2020, the TOMI field Halvening 630000. Halvening with an n, like block 18 of this run.

u/puzzleponky solved it five minutes after the second hint. The claim confirmed at 13:42:36 UTC, 45 minutes after the post. And the halving? It came on May 11, 2020, at that very block.

IDquizchain2/3535 / 772019-06-11

Puzzle / quizchain2

35

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "18xoCmXbQ5wg…jtPJ66tz",
  status: Status.Solved,
  key: wif("L2npvCw6Fgof…jR8PuXXo").entropy("56c65bfa1daa…3a7df642", source("https://www.…lock_35/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-11 · 6h 31m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35; Tryquizchain2/35 in the playground

Address: 18xoCmXbQ5wgdCvqzmovFv82JjjtPJ66tz

hash160 5756539d23b9249788ddf2b3503566e8e3c65bcd

Balance

asking the explorer

Key

public key · compressed: 037d56b403a109dec7480e01f3d98a5b61c19ac2d19afc2beebe016e73bbaf2410
WIF: L2npvCw6FgofpHc6H5ZybPdTfWQNYkR5rRuNunrrLji9jR8PuXXo
entropy hash: 56c65bfa1daa8d8b6c381e8a3a7df642
entropy source: MD5 of the month and year, TOMI, a word and a number

Transactions

funding2019-06-110.007 BTCe767fa0933…a7acb9
claim2019-06-110.0068489 BTCf432886b9c…e0c168

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35

Hints

undated
officialQuestion: In what month will the first Grycoin be mined?
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
Published answer
Solution was May 2020 and TOMI field was Halvening 630000.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
Published answer
Answer is "May 2020 TOMI Halvening 630000"
Sourcereddit.com/r/Grycoin/comments/bzc5ed/comment/eqrhaem
undated
officialThe format for the solution is [month] [year], like "June 2019".
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialTOMI is one word and one number. The first letter of the word is capital, like "Solution".
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialFirst three digits of MD5 hash are 56c.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialFirst digit of solution only MD5 hash is 0.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialFirst two digits of TOMI field only MD5 hash are 3c.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialHint 1: The number has six digits and is a multiple of 21. No leading zero for this number.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35
undated
officialMIning will be outsourced to Bitcoin.
Sourcereddit.com/r/Grycoin/comments/bzc5ed/7_mbtc_quizchain2_block_35