IDcollectionsBitcoin puzzle transaction

bits/128

Open since 2015-01-15, the key somewhere in 128 bits. 12.8 BTC on Bitcoin.

IDbits/128128 / 2562015-01-15
Puzzle / bits

128

bitcoinp2pkh unsolved

Record

puzzle({
  chain: "bitcoin",
  address: "1MZ2L1gFrCtk…Hw9gNwaj",
  key: bits(128),
})
Prize
12.8 BTC
Key material
128-bit search width
Verification
unverifiable
Solved
not yet
tx 3
Trail
Explorerblockstream.info
Sourcebitcointalk.org/index.php?topic=5218972
Trybits/128 in the playground
Address
1MZ2L1gFrCtkkn6DnTT2e4PFUTHw9gNwaj

hash160 e170ef514689d7230da362a0c121a07723550512

Balance
asking the explorer

Key

range · 128 bits
0x80000000000000000000000000000000 to 0xffffffffffffffffffffffffffffffff

Transactions

  1. funding2015-01-150.128 BTC08389f34c9…a6cd15
  2. increase2017-07-111.152 BTC5d45587cfd…384164
  3. increase2023-04-1611.52 BTC12f34b58b0…8d13b3

Techniques

  1. masked-key-rangecollectionbitcointalk.org/index.php?topic=1306983.msg18765941

Hints

  1. 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).