IDcollectionsBitcoin puzzle transaction
bits/77
Open since 2015-01-15, the key somewhere in 77 bits. 7.70002426 BTC on Bitcoin.
Puzzle / bits
77
bitcoinp2pkh unsolved
Record
puzzle({
chain: "bitcoin",
address: "1Bxk4CQdqL9p…XacifUtE",
key: bits(77),
})- Prize
- 7.70002426 BTC
- Key material
- 77-bit search width
- Verification
- unverifiable
- Solved
- not yet
tx 5
- Trail
- Explorerblockstream.info
- Sourcebitcointalk.org/index.php?topic=5218972
- Trybits/77 in the playground
- Address
- 1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE
hash160 783c138ac81f6a52398564bb17455576e8525b29
Balance
asking the explorer
Key
- range · 77 bits
- 0x10000000000000000000 to 0x1fffffffffffffffffff
Transactions
- funding2015-01-150.077 BTC08389f34c9…a6cd15
- increase2017-07-110.693 BTC5d45587cfd…384164
- increase2023-04-166.93 BTC12f34b58b0…8d13b3
- increase2023-11-290.00001826 BTC8c161394a9…e96e71
- increase2025-01-270.000006 BTC599bfd6ded…6f287f
Techniques
- masked-key-rangecollectionbitcointalk.org/index.php?topic=1306983.msg18765941
Hints
- 2017-04-2706:41:08
officialcollectionThere is no pattern. It is just consecutive keys from a deterministic wallet (masked with leading 000...0001 to set difficulty).
Sourcebitcointalk.org/index.php?topic=1306983.msg18765941Confirmweb.archive.org