IDcollectionsQuizchain2

quizchain2/72

Solved on 2019-07-18 after 2h 30m, key derived from the published recipe. 0.009 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.

NGD

July 18, 2019, 9 mBTC. The question is three letters, NGD. Format [solution] TOMI [TOMI], digits 916. No partial hashes for the first half day, says the author. "May be another solved at sight level block."

At sight? Try before sight. The claim confirmed at 08:59:59 UTC. The post went up at 12:56:36 UTC, almost four hours later.

GND

Put the letters back in order and you get GND, the Green New Deal. That's the TOMI field too. "Sorry for claiming the 72 before posting", wrote u/LiaVl. They'd been trying obvious climate phrases, and this was one of them. "Nothing to be sorry about", said the author.

The author's update said the winner reported that "he" saw it coming. "Actually it should be 'she'", wrote LiaVl. The post got fixed.

Then the thread turned into a fight about scripts. One player posted screenshots and said blocks 71 and 72 both fell to scripts. LiaVl answered that a script still needs a brain behind it. u/Quantris called the TOMI field misguided, again. The author kept it, again.

IDquizchain2/7272 / 772019-07-18
Puzzle / quizchain2

72

bitcoinp2pkh solved

Record 

puzzle({
  chain: "bitcoin",
  address: "147dHipPd9eF…AmDUhXeG",
  status: Status.Solved,
  key: wif("L1jF6nZiFYSC…XqDww6uV").entropy("916133ad362d…625d9b67", source("https://www.…lock_72/")).derived(),
})
Prize
0.009 BTC
Key material
wif, derived from the recipe
Verification
verified
Solved
2019-07-18 · 2h 30m
tx 2
Trail
Explorerblockstream.info
Sourcereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72
Tryquizchain2/72 in the playground
Address
147dHipPd9eF7UTWrsxQhGDDySAmDUhXeG

hash160 22292a4198cd2a610bb462e818f2d1aa1518d253

Balance
asking the explorer

Key

public key · compressed
02e39dd6a15bc7188123dc05db88bb3ff9ee3f5d4aa5a47424867c07d72073fc05
WIF
L1jF6nZiFYSCfXeRKVufyqzFku6xuAy5fasYowvPV7LuXqDww6uV
entropy hash
916133ad362df0d10f9f3a3e625d9b67

Transactions

  1. funding2019-07-180.009 BTC8eca76a4b7…572c3d
  2. claim2019-07-180.0089065 BTC3a79fcbbe5…7f125b

Files

Techniques

  1. md5-to-bip39-entropypuzzlereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72

Hints

  1. undated

    officialQuestion: NGD

    Sourcereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72

    Published answer

    Solution was GND and TOMI field was Green New Deal.

    Sourcereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72

  2. undated

    officialFormat: [solution] TOMI [TOMI]

    Sourcereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72

    Published answer

    GND TOMI Green New Deal

    Sourcereddit.com/r/Grycoin/comments/ces4vi/comment/eu4ifd8

  3. undated

    officialFirst three digits of MD5 hash are 916 (copypasted).

    Sourcereddit.com/r/Grycoin/comments/ces4vi/9_mbtc_quizchain2_block_72

ID@agntn/puzzlesv0.29.0MIT license

Public data about public puzzles. Balances come from the chains' explorers through the worker, cached for five minutes. Every key here was public before it landed in a record.