IDcollections RetiredCoder's mini-puzzles

mini/7

Solved on 2026-07-29 after 1h 16m, key published. 1.35 BCH on Bitcoin Cash.

IDmini/707 / 72026-07-29

Puzzle / mini

7

bitcoincashp2pkh solved

Record

bitcoincashPuzzle({
  address: p2pkh("bitcoincash:…tu7nrhlw", "3b6f58a75a54…32992326"),
  status: Status.Solved,
  key: hex("000000000000…7af07eb2", 135),
})

Prize: 1.35 BCH
Key material: hex
Verification: verified
Solved: 2026-07-29 · 1h 16m

tx 3

Trail: Explorerblockchair.com; Sourcebitcointalk.org/index.php?topic=5589799; Trymini/7 in the playground

Address: bitcoincash:qqak7k98tf2tlkzar0rv2yvqlhrn9xfryctu7nrhlw

hash160 3b6f58a75a54bfd85d1bc6c51180fdc732992326

Balance

asking the explorer

Key

public key · compressed: 02145d2611c823a396ef6712ce0f712f09b9b4f3135e3e0aa3230fb9b6d08d1e16
range · 135 bits: 0x4000000000000000000000000000000000 to 0x7fffffffffffffffffffffffffffffffff
private key (hex): 0000000000000000000000000000006d9392a16883f90903d5f78da57af07eb2

Transactions

funding2015-01-150.135 BCH08389f34c9…a6cd15
increase2017-07-111.215 BCH5d45587cfd…384164
claim2026-07-291.35 BCH1115debca7…7334f7

Hints

2026-07-29
official16RGFo6hjq9ym6Pj7N5H7L1NR1rVPJyw2v Message: Thank you Satoshi Nakamoto! Signature: ICVZGMwpPuca4krotcpwEzTyJXBUQF+w25M2TLnFHzIiAKYS+4c6taNLaMM7ZChJ2oMPQXiuzsYDCeF9xZFBMZg=
Sourcebitcointalk.org/index.php?topic=5589799.msg66991218
Published answer
Ok, I will explain: to be able to calculate pk you just need to know the nonce from this signature, a hint is in the message: use bitcoin genesis block data (I used merkle root for nonce). So #135 pk is: 0000000000000000000000000000006D9392A16883F90903D5F78DA57AF07EB2
2026-07-29bitcointalk.org/index.php?topic=5589799.msg66992048