quizchain2/53

Solved on 2019-06-30 after 1d 5h 10m, 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.

Superman

June 29, 2019. The question is Superman. The solution is a URL, the first one in the run, "relevant URL unchanged". Digits 4c1, and the author points out that MD5 is spelled right this time.

Then the questions start. https or http? www or not? Slash at the end? "Just copypaste as is from browser", says the author. Which browser, though? Chrome.

Warm miners

A day passes. The hints say Superman leads to Satoshi, meaning Hal Finney, and that the URL depends on your hardware. The author used a phone. The last one is warm miners.

The answer is a Jameson Lopp tweet with Hal Finney in a Superman shirt: https://mobile.twitter.com/lopp/status/1143879778170232833. The mobile one. u/silver_anth had seen the tweet before. The desktop link just hashes to something else.

The claim confirmed at 08:21:06 UTC on June 30, 29 hours after the funding. "I would consider the solution a mistake", wrote the winner. The author agreed. So block 55 got 77 mBTC. Fair trade?

IDquizchain2/5353 / 772019-06-29 → 2019-06-30

Puzzle / quizchain2

53

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "14v36xE3KFyP…g3j2NXRy",
  status: Status.Solved,
  key: wif("Kwp34pYdLg52…FSG8DC51").entropy("4c17b6bd386f…de250af1", source("https://www.…lock_53/")).derived(),
})

Prize: 0.007 BTC
Key material: wif, derived from the recipe
Verification: verified
Solved: 2019-06-30 · 1d 5h 10m

tx 2

Trail: Explorerblockstream.info; Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53; Tryquizchain2/53 in the playground

Address: 14v36xE3KFyP35S2BfoK7XUYMbg3j2NXRy

hash160 2af02db2ae8154c7e38d710697aa8cded44dab17

Balance

asking the explorer

Key

public key · compressed: 0252c71dff54db39a7552aec853bbde052fd4dcde19cd6f48caca5e4dafdf4a306
WIF: Kwp34pYdLg522kp89Vnd1b2x6H56B8vrNpqG1WhtbRZ8FSG8DC51
entropy hash: 4c17b6bd386f7b6a7807e783de250af1
entropy source: MD5 of the URL

Transactions

funding2019-06-290.007 BTC68c6f4f253…f3f561
claim2019-06-300.00690208 BTC429e4f59ab…cbe890

Files

Techniques

md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53

Hints

undated
officialQuestion: Superman
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
Published answer
which is a Tweet by Jameson Lopp showing a picture of Hal Finney in a Superman t-shirt.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
undated
officialFormat: [solution], solution format is relevant URL unchanged.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
Published answer
https://mobile.twitter.com/lopp/status/1143879778170232833
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
undated
officialFIrst three digits of MD5 hash (not MP5, spelled correctly this time) are 4c1.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
undated
officialJust copypaste as is from browser, so include http or www or whatever there is. Change nothing.
Sourcereddit.com/r/Grycoin/comments/c6w965/comment/esboql9
undated
officialUpdate: As noted in block 54 (already solved) there is a connection from Superman to Satoshi (Hal FInney). That is a hint for this block.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
undated
officialAnother is the fact that the URL will change depending on what kind of hardware you use. I used a mobile device.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53
undated
officialAnd the maybe decisive hint is "warm miners", though that one also does not lead to the solution with a simple Google search.
Sourcereddit.com/r/Grycoin/comments/c6w965/7_mbtc_quizchain2_block_53