quizchain2/30

Solved on 2019-06-08 after 2d 21h 47m, 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.

AY

June 5, 2019. The question is two letters, AY. The solution is three sets of two capital letters, then a TOMI field. Digits 086, b and 4.

That's it. Two letters and a hash. Where do you even start?

Players voted for a TOMI format hint, so hint one gave [Word1] [word2]. Hint two gave the first word: Atbash. Still no solve. u/Agelais counted the six letter combinations, more than 300 million, still 19 million after the one digit check. "We cant read your thoughts." Fair point.

Atbash foldover

Write the alphabet in two rows, A to M on top and the rest folded back underneath. That's an Atbash foldover. Look straight down and you get pairs like BY. The author looked one place to the right instead and found EU IQ KO. With AY from the question, the block uses every vowel. And IQ fits a riddle.

The TOMI field is Atbash foldover. The claim confirmed at 20:37:36 UTC on June 8, three days after funding. u/kimi_tousan posted the string and found the trick in an alphabet of 25 letters, not 26.

The longest solve in this stretch. And the thread ends with players asking for more hash digits.

IDquizchain2/3030 / 772019-06-05 → 2019-06-08

Puzzle / quizchain2

30

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "123eggbD9tm3…NcHFHDRm",
  status: Status.Solved,
  key: wif("Kwk33rsM9Gnz…ULdqjCZ5").entropy("086f597ff615…4cddc0c1", source("https://www.…lock_30/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-08 · 2d 21h 47m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30; Tryquizchain2/30 in the playground

Address: 123eggbD9tm39Qv1YXLcBt4vCtNcHFHDRm

hash160 0b786a357db18b7e962a384245c7777df200ed64

Balance

asking the explorer

Key

public key · compressed: 028a2733a6e0dacff467144a11403ff5e9a936af840761d41dedfa75794e8ae836
WIF: Kwk33rsM9GnzoNePzxX1M4EstCVPgvZ229j5HBbLtjUoULdqjCZ5
entropy hash: 086f597ff6158313c5a0b7fa4cddc0c1
entropy source: MD5 of the three pairs, TOMI and two words

Transactions

funding2019-06-050.007 BTCea8cc06a7b…47ac47
claim2019-06-080.00683219 BTC5309e0cdab…45e27e

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
atbashpuzzlereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30

Hints

undated
officialQuestion: AY
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
Published answer
Solution was "EU IQ KO" and TOMI field was "Atbash foldover".
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
Published answer
Solution: EU IQ KO TOMI Atbash foldover
Sourcereddit.com/r/Grycoin/comments/bx97d0/comment/eqg0k0b
undated
officialSolution format is three sets of two capital letters.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialFIrst three digits of MD5 hash are 086.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialFIrst digit of solution only MD5 hash is b.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialFIrst digit of TOMI field only MD5 hash is 4.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialThe format for the TOMI field is [Word1] [word2]. Word1 starts with a capital letter, word2 is all lower case. There is one space between the two words.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30
undated
officialFirst word of TOMI field is Atbash.
Sourcereddit.com/r/Grycoin/comments/bx97d0/7_mbtc_quizchain2_block_30