IDcollectionsBitcoin puzzle transaction

bits/187

Swept on an unknown date by someone other than a solver. 0.187 BTC on Bitcoin.

IDbits/187187 / 2562015-01-15
Puzzle / bits

187

bitcoinp2pkh swept

Record

puzzle({
  chain: "bitcoin",
  address: "19ct7Egfi5j6…UmyhtXjC",
  status: Status.Swept,
  key: bits(187),
})
Prize
0.187 BTC
Key material
187-bit search width
Verification
unverifiable
Solved
unknown
tx 2
Trail
Explorerblockstream.info
Sourcebitcointalk.org/index.php?topic=5218972
Trybits/187 in the playground
Address
19ct7Egfi5j6jSefj8X4d5eXJQUmyhtXjC

hash160 5e8a3a32df85af78e2ce3493985ff4ae2da00623

Balance
asking the explorer

Key

public key · compressed
028393d6e394d960b1b7e239707d87595f85b7bdca480dafd39d4797124740d9ef
range · 187 bits
0x40000000000000000000000000000000000000000000000 to 0x7ffffffffffffffffffffffffffffffffffffffffffffff

Transactions

  1. funding2015-01-150.187 BTC08389f34c9…a6cd15
  2. sweep2017-07-110.187 BTC5d45587cfd…384164

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).