quizchain/17

Solved on 2019-04-10 after 6h 6m, 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.

Seven days on Reddit

"No hint. And no, "No hint" is not the answer this time." 8 mBTC, for the lucky number.

The hint is in the post anyway: "it is 7 days on Reddit for me". Go back to the author's first Reddit post and you find a link to 1AndrewYangForPresident2o2ozm6Pzd. That address is the answer.

It also answers block 16. The address spells 2020 as 2o2o, because a zero is illegal there. Claimed six hours in.

IDquizchain/1717 / 772019-04-09 → 2019-04-10

Puzzle / quizchain

17

bitcoinp2pkh solved

Record

bitcoinPuzzle({
  address: p2pkh("1FpiJm3JKsgA…XrR7sQpY", "a297cab6d0d7…d5602d05"),
  status: Status.Solved,
  key: wif("KxqEkwjTQLuY…C9eoVeQh").entropy("f561020d891b…6b5ddde2", source("https://www.…lock_17/")).derived(),
})

Prize: 0.008 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-04-10 · 6h 6m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/bitcoinpuzzles/comments/bbf7cl/expert_8_mbtc_quizchain_block_17; Tryquizchain/17 in the playground

Address: 1FpiJm3JKsgAae5KtJhPDytgmYXrR7sQpY

hash160 a297cab6d0d7b2bdc8fb4cbe9dd1fc27d5602d05

Balance

asking the explorer

Key

public key · compressed: 0244d7cc972d9412cf4aedb15984cb418fd96365bf25751044030101560d7f7156
WIF: KxqEkwjTQLuYGDwWvMUqEfhhDFB11UXv9sDVZH7M7YcaC9eoVeQh
entropy hash: f561020d891bc5a248331d866b5ddde2
entropy source: MD5 of the address, a space and the last three characters of the block 16 key

Transactions

funding2019-04-090.008 BTCa7cedbfdf7…662c43
claim2019-04-100.00769453 BTC75e380a09f…4b2f71

Hints

undated
officialNo hint. And no, "No hint" is not the answer this time. Already used that idea in block 11. Format: [solution] [link], with exactly one space between them.
Sourcereddit.com/r/bitcoinpuzzles/comments/bbf7cl/expert_8_mbtc_quizchain_block_17
Published answer
The correct solution was to go back in my posting history to the first post, which was a link to this Bitcoin address: 1AndrewYangForPresident2o2ozm6Pzd
Sourcereddit.com/r/bitcoinpuzzles/comments/bbf7cl/expert_8_mbtc_quizchain_block_17
undated
officialI also note that it is 7 days on Reddit for me, so this is another reason to celebrate with an extremely hard block.
Sourcereddit.com/r/bitcoinpuzzles/comments/bbf7cl/expert_8_mbtc_quizchain_block_17
undated
officialOnce you have the solution, that solution in turn will be a hint for block 16...
Sourcereddit.com/r/bitcoinpuzzles/comments/bbf7cl/expert_8_mbtc_quizchain_block_17