quizchain2/17

Solved on 2019-05-24 after 10h 41m, key derived from the published recipe. 0.008 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.

Cross sum

May 24, 2019. The title says 7 mbtc, the post says 8. Why? "There is a number seven in 17", and the cross sum of 17 is 8. Sure, why not.

The question: 500 years in the right eye. Format [solution] TOMI [TOMI], digits 885, a and f.

LV

The Mona Lisa is about 500 years old. Sources say there are tiny letters in her right eye, LV. The author's update says Leonardo signed his work there. So the string is LV TOMI Mona Lisa.

The post went up at 22:58:40 UTC. The claim confirmed at 23:05:03. Six and a half minutes. u/mooncritic posted the string, then asked if the extra 1 mBTC was a mistake and offered to send it back. Nice. The 8 was on purpose, right there at the top of the post. The 7 in the title? The author called that "another mistake". No penalty block for it, though.

Why so fast? u/silver_anth explained it: paste the question into Google and the answer is the first thing you see. The author admitted to googling it before posting. "Maybe not careful enough..." Fair enough.

IDquizchain2/1717 / 202019-05-24

Puzzle / quizchain2

17

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("19XZ9YAN4GHd…UoUFeFfb", "5d8851fbeb89…139c0fd0"),
  status: Status.Solved,
  key: wif("KzY3p5xmbMZ1…2abY4b8n").entropy("885f0a95963d…6f2a8b7a", source("https://www.…lock_17/")).derived(),
})

Prize: 0.008 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-05-24 · 10h 41m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17; Tryquizchain2/17 in the playground

Address: 19XZ9YAN4GHdktoWU6W6mZKLQZUoUFeFfb

hash160 5d8851fbeb898ca8868bfe5254de2d33139c0fd0

Balance

asking the explorer

Key

public key · compressed: 0314c0b41514a2c034c719c45eb0adde55ea1e72d3859868ddb5b9a8ccb5b3099e
WIF: KzY3p5xmbMZ1KCoPV2EHXGfrTQuBoxbomPSrk7znSFHr2abY4b8n
entropy hash: 885f0a95963d544208ebb0ac6f2a8b7a
entropy source: MD5 of the letters, TOMI and two words

Transactions

funding2019-05-240.008 BTC64eb4eae0b…b85bd8
claim2019-05-240.00753203 BTCd903c67367…68639f

Hints

undated
officialQuestion: 500 years in the right eye
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17
Published answer
Solved at sight, solution was LV, TOMI field Mona Lisa. It took about 500 years for someone to notice that Leonardo signed his work there...
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17
Published answer
Solved! "LV TOMI Mona Lisa"
Sourcereddit.com/r/Grycoin/comments/bsnke3/comment/eooiqyb
undated
officialFIrst three digits of MD5 hash are 885.
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17
undated
officialFirst digit of solution only MD5 hash is a.
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17
undated
officialFirst digit of TOMI only MD5 hash is f.
Sourcereddit.com/r/Grycoin/comments/bsnke3/7_mbtc_quizchain2_block_17