Solved
Bitcoin puzzle #29
Bitcoin puzzle #29 has been solved. Its private key is 17e2551e. The address originally held 0.03 BTC, which was swept by whoever found the key first.
Puzzle #29 at a glance
- Total received
- 0.029 BTC
- Balance now
- 0.0 BTC
- Address
- 19EEC52krRUK1RkUAEZmQdjTyHT7Gp1TYT
- HASH160
- 5a416cc9148f4a377b672c8ae5d3287adaafadec
- Range start
- 10000000
- Range end
- 1fffffff
- Bit length
- 29-bit
- Keys in range
- 268,435,456 (268435456)
- Transactions
- 2
The solved key
- Private key
- 17e2551e
- Decimal
- 400708894
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M89tAnjFUUDRtJ
Verify it yourself: multiply this key by the secp256k1 generator point, compress the resulting public key, and take RIPEMD-160(SHA-256(·)). You get exactly the HASH160 above. This site performs that check on every published key at build time.
Puzzle #29 — common questions
How many private keys does Bitcoin puzzle #29 contain?
Puzzle #29 spans the range 2^28 to 2^29−1, which is exactly 268,435,456 private keys — twice as many as puzzle #28.
How long would it take to solve Bitcoin puzzle #29?
An eight-core machine running this browser solver at four million keys per second would need about 1 minutes to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about < 1 seconds.
How much is Bitcoin puzzle #29 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.029 BTC.
Is Bitcoin puzzle #29 solved?
Yes. Its private key is 17e2551e in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M89tAnjFUUDRtJ in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #29?
From 10000000 to 1fffffff in hexadecimal. The address is 19EEC52krRUK1RkUAEZmQdjTyHT7Gp1TYT and its HASH160 is 5a416cc9148f4a377b672c8ae5d3287adaafadec.