quizchain2/66

Solved on 2019-07-13 after 1d 4h 52m, 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.

Aoi

July 12, 2019. The author is sad. All the hints for block 77 of the first run, and still nobody solved it. So this one is easy. The question is Aoi. Format [solution]., no comma in the solution, one period after it. Digits dc5.

"Comma is next to a period on the keybord. Coincidence?" asks u/martypyouknowme. "Yes."

A young woman

Meanwhile a deleted account gets angry enough for a ban warning. The author changes their mind: "you have too much entertainment value." Then the hint, a couple of minutes late. One sentence, without a comma, that describes the author.

It's the block 63 message, trimmed at both ends: A young woman of Japanese ancestry who is very smart and sincere. u/Randomiser had tried the whole thing the day before, with I am and the signature. Too much sentence.

The claim confirmed at 04:07:02 UTC on July 13, a day after the post. Satoshi wrote almost the same words about himself, says the author. In the post behind stage one of block 77.

IDquizchain2/6666 / 772019-07-11 → 2019-07-13

Puzzle / quizchain2

66

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "1Lrh5pgaaKXd…tjPWJMij",
  status: Status.Solved,
  key: wif("KyR2KVqfhwQ7…dxDEDwxm").entropy("dc59555d015d…cad161ba", source("https://www.…lock_66/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-07-13 · 1d 4h 52m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66; Tryquizchain2/66 in the playground

Address: 1Lrh5pgaaKXdWC9u5bzp9ogsNktjPWJMij

hash160 d9d03b5348ab3909240c899d031497d492c27963

Balance

asking the explorer

Key

public key · compressed: 028b06cd25a5f2a17be760c8dd54a6e8d8e6bb2b2c2ede633d60b479872fd98dea
WIF: KyR2KVqfhwQ7gSdx1ZVNouVHzePw7BeqPewQ5TWti9d2dxDEDwxm
entropy hash: dc59555d015d2793e7750188cad161ba
entropy source: MD5 of the sentence

Transactions

funding2019-07-110.007 BTC58b9cb448f…16ea70
claim2019-07-130.00683795 BTC375a563c2a…68daf3

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66

Hints

undated
officialQuestion: Aoi
Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66
Published answer
solution was from the hint in block 63 "A young woman of Japanese ancestry who is very smart and sincere."
Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66
undated
officialFormat: [solution]. No comma in solution, but one period after it.
Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66
Published answer
It was taken from the hint from block 63: "A young woman of Japanese ancestry who is very smart and sincere."
Sourcereddit.com/r/Grycoin/comments/cc5uka/comment/etnllvl
undated
officialFirst three digits of MD5 hash are dc5.
Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66
undated
officialSolution is one sentence without comma and a period at the end to describe me.
Sourcereddit.com/r/Grycoin/comments/cc5uka/7_mbtc_quizchain2_block_66