quizchain2/42

Solved on 2019-06-18 after 4h 41m, 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.

No question

June 18, 2019. Rapid fire again, one hint every five minutes. The post has a format and the digits bec. The question line is empty. "You forgot the question", wrote a player. "I know..."

Then the hints. "42". The TOMI field is two items. The solution is part of a solution. "I can't get away with posting the literal exact solution before the block twice". Then: "Or can I?"

Yes, they can. In the first run, the block 41 solution said what block 42 would be. That sentence is the answer here: the solution to which will of course be "42". Nine items. The TOMI field is block 41.

u/martypyouknowme had it before the last hint. The claim confirmed at 04:36:11 UTC, 36 minutes after the post.

Of or to?

The author's update writes the solution of which, with a stray quotation mark at the end. The hash says otherwise. Only to gives bec and the address the claim spent. u/JDScreesh lost time on exactly that in the next thread. Who reads their own solution twice?

IDquizchain2/4242 / 772019-06-17 → 2019-06-18

Puzzle / quizchain2

42

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "13orvovfAkY4…PM1cW1Ke",
  status: Status.Solved,
  key: wif("L1BTKtsa43EL…ftewyv5w").entropy("becddc56d92e…eaa3b24e", source("https://www.…ergbrxb/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-18 · 4h 41m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42; Tryquizchain2/42 in the playground

Address: 13orvovfAkY4vmWLQv1RaJfAXiPM1cW1Ke

hash160 1ecd103a5859aa541b3f905efe0cb6baa8e7fadc

Balance

asking the explorer

Key

public key · compressed: 028fd1c75ae7daeb21fc0d1f1ab575f022f2aee3cee40077a2300375b6ebd4766e
WIF: L1BTKtsa43ELpcFudMX5hbFvSAFSFR9dAaTHYkEnnhrHftewyv5w
entropy hash: becddc56d92e2dd650403dc0eaa3b24e
entropy source: MD5 of the nine words, TOMI and two items

Transactions

funding2019-06-170.007 BTCab5e357402…522057
claim2019-06-180.00677174 BTCbda242d4f6…a25d77

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/c1xhjo/comment/ergbrxb

Hints

undated
officialHint 1: "42"
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
Published answer
The idea was simply to have once more the solution posted before the block and this solution string was from block 41 of the first run, like the first time I tried this.
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialFormat: [solution] TOMI [TOMI]
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
Published answer
the solution to which will of course be "42" TOMI block 41
Sourcereddit.com/r/Grycoin/comments/c1xhjo/comment/ergbrxb
undated
officialFirst three digits of MD5 hash are bec.
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 2: TOMI field is two items
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 3: solution is part of solution
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 4: I can't get away with posting the literal exact solution before the block twice
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 5: Or can I?
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 6: Nine items in solution.
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42
undated
officialHint 7 (last one): TOMI field is block 41.
Sourcereddit.com/r/Grycoin/comments/c1xhjo/7_mbtc_quizchain2_block_42