IDcollectionsBitcoin puzzle transaction

bits/149

Open since 2015-01-15, the key somewhere in 149 bits. 14.90001 BTC on Bitcoin.

IDbits/149149 / 2562015-01-15
Puzzle / bits

149

bitcoinp2pkh unsolved

Record

puzzle({
  chain: "bitcoin",
  address: "1CXvTzR6qv8w…HwDYP1i2",
  key: bits(149),
})
Prize
14.90001 BTC
Key material
149-bit search width
Verification
unverifiable
Solved
not yet
tx 4
Trail
Explorerblockstream.info
Sourcebitcointalk.org/index.php?topic=5218972
Trybits/149 in the playground
Address
1CXvTzR6qv8wJ7eprzUKeWxyGcHwDYP1i2

hash160 7e827e3b90da24c2a15f7b67e3bbece39955a5d0

Balance
asking the explorer

Key

range · 149 bits
0x10000000000000000000000000000000000000 to 0x1fffffffffffffffffffffffffffffffffffff

Transactions

  1. funding2015-01-150.149 BTC08389f34c9…a6cd15
  2. increase2017-07-111.341 BTC5d45587cfd…384164
  3. increase2021-08-190.00001 BTCe1f668b8cc…44076b
  4. increase2023-04-1613.41 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).