quizchain/39

Solved on 2019-04-14 after 1h 1m, key published. 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.

Mr Big

"Second." After block 38, that's the second Bond villain, Mr Big. The field is the second letter of each word again, ri.

It opened the first real chain of three: no links given, solve this one to get into block 40. It held about an hour. A player later printed its WIF, which is where the record's key comes from.

IDquizchain/3939 / 772019-04-14

Puzzle / quizchain

39

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("1D35Unrf2cpi…Xm72BRNT", "84061490c3a1…a5358e1e"),
  status: Status.Solved,
  key: wif("Kyafo1uBuP7p…ZowukeP8").entropy("19bb929aed76…51a76ece", source("https://www.…lock_39/")),
})

Prize: 0.007 BTC
Key material: wif
Verification: verified
Solved: 2019-04-14 · 1h 1m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/bitcoinpuzzles/comments/bd2p5c/7_mbtc_quizchain_block_39; Tryquizchain/39 in the playground

Address: 1D35Unrf2cpiTZRwAWBYeGcdJNXm72BRNT

hash160 84061490c3a1dcc8dd795dfb9b6704bfa5358e1e

Balance

asking the explorer

Key

public key · compressed: 038cef626d8f337c273daca714cc0d962f5b4439a77805bcdd43f023efe09570e3
WIF: Kyafo1uBuP7pRMDDdjDMjVzThitBMXaiBcbWFUYQVDg1ZowukeP8
entropy hash: 19bb929aed76a879df33689d51a76ece
entropy source: MD5 of the villain, BFUB, the second letters of both words and the last three characters of the block 38 key, separated by spaces

Transactions

funding2019-04-140.007 BTCf1771cfeda…a869ad
claim2019-04-140.00699155 BTC4a76ebcd28…af1809

Hints

undated
officialQuestion: Second
Sourcereddit.com/r/bitcoinpuzzles/comments/bd2p5c/7_mbtc_quizchain_block_39
Published answer
Solution was the second James Bond villain, Mr Big. And the BFUB field was derived like in the previous block, making it ri.
Sourcereddit.com/r/bitcoinpuzzles/comments/bd2p5c/7_mbtc_quizchain_block_39
undated
officialBFUB is like last block, second letter of the words in solution.
Sourcereddit.com/r/bitcoinpuzzles/comments/bd2p5c/7_mbtc_quizchain_block_39
undated
officialLast block link: B3j Hash first two digits: 19
Sourcereddit.com/r/bitcoinpuzzles/comments/bd2p5c/7_mbtc_quizchain_block_39