Solved
Bitcoin puzzle #1
Bitcoin puzzle #1 has been solved. Its private key is 1. The address originally held 0.25 BTC, which was swept by whoever found the key first.
Puzzle #1 at a glance
- Total received
- 0.25001029 BTC
- Balance now
- 0.0 BTC
- Address
- 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
- HASH160
- 751e76e8199196d454941c45d1b3a323f1433bd6
- Range start
- 1
- Range end
- 1
- Bit length
- 1-bit
- Keys in range
- 1 (1)
- Transactions
- 197
The solved key
- Private key
- 1
- Decimal
- 1
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
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 #1 — common questions
How many private keys does Bitcoin puzzle #1 contain?
Puzzle #1 spans the range 2^0 to 2^1−1, which is exactly 1 private keys — twice as many as puzzle #0.
How long would it take to solve Bitcoin puzzle #1?
An eight-core machine running this browser solver at four million keys per second would need about < 1 seconds 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 #1 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.25001029 BTC.
Is Bitcoin puzzle #1 solved?
Yes. Its private key is 1 in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #1?
From 1 to 1 in hexadecimal. The address is 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH and its HASH160 is 751e76e8199196d454941c45d1b3a323f1433bd6.