IDcollectionsBitcoin puzzle transaction

bits/146

Open since 2015-01-15, the key somewhere in 146 bits. 14.6 BTC on Bitcoin.

IDbits/146146 / 2562015-01-15
Puzzle / bits

146

bitcoinp2pkh unsolved

Record

puzzle({
  chain: "bitcoin",
  address: "1M7ipcdYHey2…hmjaV89P",
  key: bits(146),
})
Prize
14.6 BTC
Key material
146-bit search width
Verification
unverifiable
Solved
not yet
tx 3
Trail
Explorerblockstream.info
Sourcebitcointalk.org/index.php?topic=5218972
Trybits/146 in the playground
Address
1M7ipcdYHey2Y5RZM34MBbpugghmjaV89P

hash160 dca7ebfb78ce21884300f133d89244bc4b1b756f

Balance
asking the explorer

Key

range · 146 bits
0x2000000000000000000000000000000000000 to 0x3ffffffffffffffffffffffffffffffffffff

Transactions

  1. funding2015-01-150.146 BTC08389f34c9…a6cd15
  2. increase2017-07-111.314 BTC5d45587cfd…384164
  3. increase2023-04-1613.14 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).