quizchain/33

Solved on 2019-04-14 after 1d 5h 9m, 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.

Think harder

"An easy math problem. 4231 minus 132." It's not a math problem. It's not easy either.

The subtraction is a decoy. Math is the Yang campaign's MATH hat, Make America Think Harder. So the answer is Think harder and the field is Yang hat. The author gave that away as "the solution of block 35 is massive hint for this one". 29 hours, and the author admits medium was optimistic.

IDquizchain/3333 / 772019-04-13 → 2019-04-14

Puzzle / quizchain

33

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("137SFKp9MPjy…Ud9QyeiA", "1727d28c037b…52b6c65a"),
  status: Status.Solved,
  key: wif("KwPtjU4XKtQ2…rfxzuHDD").entropy("fa19d83c0fab…63c65834", source("https://www.…lock_33/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-04-14 · 1d 5h 9m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/bitcoinpuzzles/comments/bcmgqi/medium_7_mbtc_quizchain_block_33; Tryquizchain/33 in the playground

Address: 137SFKp9MPjymMQVk85oarHoaxUd9QyeiA

hash160 1727d28c037b573e4bc8d239e0130fc252b6c65a

Balance

asking the explorer

Key

public key · compressed: 025ad61882fbd1a289b07a27324f16225e4694e29bac6bf488f9707fd57a4e97b2
WIF: KwPtjU4XKtQ2oqdiQc9vgrhefAqi9egXS2PXi7PiHDewrfxzuHDD
entropy hash: fa19d83c0fabbaee989eced063c65834
entropy source: MD5 of the answer, BFUB, two words from the block 35 answer and the last three characters of the block 32 key, separated by spaces

Transactions

funding2019-04-130.007 BTCf06027a116…657a3d
claim2019-04-140.00688474 BTC786fc5ca05…67f122

Hints

undated
officialQuestion: An easy math problem. 4231 minus 132.
Sourcereddit.com/r/bitcoinpuzzles/comments/bcmgqi/medium_7_mbtc_quizchain_block_33
Published answer
Solution was "Think harder BFUB Yang hat".
Sourcewattpad.com/720895205-second-complete-quizchain
undated
officialFormat: [solution] BFUB [BFUB text] [link]. Two words in BFUB field, first of them capitalized.
Sourcereddit.com/r/bitcoinpuzzles/comments/bcmgqi/medium_7_mbtc_quizchain_block_33
undated
officialSolution of block 35 is massive hint for this one. Two BFUB words in this one are from the solution of block 35.
Sourcereddit.com/r/bitcoinpuzzles/comments/bcmgqi/comment/ekuvi1b
undated
officialAnother hint. Solution is of the format [word1] [word2]
Sourcereddit.com/r/bitcoinpuzzles/comments/bcmgqi/comment/ekux6t7