quizchain/45

Solved on 2019-04-16 after 18h 50m, 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.

Bitcoin, one letter back

"Bitcoin Second." Same question as block 31, and a player complained about it. The author disagreed: no field this time, so the answer can't be one letter.

Every letter of Bitcoin moves back one: Ahsbnhm. Block 44 was still stuck, so the author set the seven character link, Da6Sn4J. It sits in the block 44 key, three characters before the end. This post carried blocks 46 and 47 too.

IDquizchain/4545 / 772019-04-16

Puzzle / quizchain

45

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("1KDnYd2LJwBf…74mUn2cP", "c7dd465d4035…45f3993d"),
  status: Status.Solved,
  key: wif("Kz8sAdfB3SfP…dgAELXgr").entropy("66fd83ff6aac…cb132701", source("https://www.…5_to_47/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-04-16 · 18h 50m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/7_mbtc_7_mbtc_11_mbtc_quizchain_blocks_45_to_47; Tryquizchain/45 in the playground

Address: 1KDnYd2LJwBfm74vv7VVP6kX3G74mUn2cP

hash160 c7dd465d4035e9f23827d4c10351508045f3993d

Balance

asking the explorer

Key

public key · compressed: 023164c0fb8c260c3010006309158b27ae6ae0f52ba1d398a9d15f336113f514b0
WIF: Kz8sAdfB3SfP51H8WCpRt1jXGn8GrhJMHuyPwpotaSfqdgAELXgr
entropy hash: 66fd83ff6aacd8c9618c015ecb132701
entropy source: MD5 of Bitcoin with every letter shifted one back, the fixed BFUB text and the link the post set

Transactions

funding2019-04-160.007 BTC8514df7fae…150f51
claim2019-04-160.00690707 BTC4a726f795c…fddf2e

Hints

undated
officialQuestion: Bitcoin Second
Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/7_mbtc_7_mbtc_11_mbtc_quizchain_blocks_45_to_47
Published answer
That is because this time the solution is shifting ALL letters in "Bitcoin" to the letter before in the alphabet, as opposed to shifing only the first in the other block.
Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/7_mbtc_7_mbtc_11_mbtc_quizchain_blocks_45_to_47
undated
officialFormat: [solution] BFUB Have fun with this block Da6Sn4J
Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/7_mbtc_7_mbtc_11_mbtc_quizchain_blocks_45_to_47
Published answer
"Ahsbnhm BFUB Have fun with this block Da6Sn4J"
Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/comment/elkiinm
undated
officialLink for this is set to Da6Sn4J.
Sourcereddit.com/r/bitcoinpuzzles/comments/bdrcj7/7_mbtc_7_mbtc_11_mbtc_quizchain_blocks_45_to_47