IDcollections Move Over Brokers treasure hunt

move-over-brokers/en-hard-2

Solved on 2026-06-25 after 5y 7mo 1h 30m, key published. 0.002 BTC on Bitcoin.

IDmove-over-brokers/en-hard-206 / 122020-11-28 → 2026-06-25

Puzzle / move-over-brokers

en-hard-2

bitcoinp2pkh solved

Record

puzzle({
  chain: "bitcoin",
  address: "161YgNX2NrCz…WeuovBK3",
  status: Status.Solved,
  key: hex("9dd0f77d3cc6…26679be8").wif("5K1nnZxtT1kD…LYhruRTB"),
})

Prize: 0.002 BTC
Key material: hex
Verification: verified
Solved: 2026-06-25 · 5y 7mo 1h 30m

tx 2

Trail: Explorerblockstream.info; Sourcekf106.medium.com/everyone-loves-a-treasure-hunt-93885ae8d80a; Solverfloflo777 and what else they solved; Trymove-over-brokers/en-hard-2 in the playground

Address: 161YgNX2NrCzGunWvoV1hN3DuzWeuovBK3

hash160 36f312b3ed2bdc97024a39545f8f881bfd9c2239

Balance

asking the explorer

Key

public key · uncompressed: 04563a1dcc9bd3f03c403bef3f80b6258838f2395c9838bfa38ce758b65f4559be2775fd89def3115f475fdd3469e4f0dbcc9635871fa4130337aa565b2b04aaa5
private key (hex): 9dd0f77d3cc6746cdfe779de61499a88ba4a7fc6a53f90dc276a0c2826679be8
WIF: 5K1nnZxtT1kDxbzjkwK6GUYBWApcUMDpLVpKNgSvpGxLYhruRTB

Transactions

funding2020-11-280.002 BTCf26ecab737…ce8972
claim2026-06-250.001996 BTCc46c70fb04…2b45d0

Techniques

xorpuzzlegithub.com/floflo777/open-crypto-puzzles/tree/main/2-mid-prizes/keir-finlow-bates-blockchain-book-600ksats

Hints

undated
officialYou hold the source of each and every key in your hands... as long as you have a physical copy, that is. Note that there are plenty of red herrings too.
Sourcegithub.com/floflo777/open-crypto-puzzles/blob/main/2-mid-prizes/keir-finlow-bates-blockchain-book-600ksats/clues/author-posts.md
undated
officialIn many cases, you'll have to hash the answer three times.
Sourcegithub.com/floflo777/open-crypto-puzzles/blob/main/2-mid-prizes/keir-finlow-bates-blockchain-book-600ksats/clues/author-posts.md
2026-08-16
communityFigure 10, "A hash function-generated one-time password pad", prints 7 SHA-256 values built from a deliberately altered pangram.
Sourcegithub.com/floflo777/open-crypto-puzzles/tree/main/2-mid-prizes/keir-finlow-bates-blockchain-book-600ksats
Published answer
XOR the 7 printed 256-bit hex values together, use the 32-byte result directly as the private key, uncompressed public key.
2026-08-16github.com/floflo777/open-crypto-puzzles/tree/main/2-mid-prizes/keir-finlow-bates-blockchain-book-600ksats