Solved
Bitcoin puzzle #13
Bitcoin puzzle #13 has been solved. Its private key is 1460. The address originally held 0.01 BTC, which was swept by whoever found the key first.
Puzzle #13 at a glance
- Total received
- 0.01322197 BTC
- Balance now
- 0.0 BTC
- Address
- 1Pie8JkxBT6MGPz9Nvi3fsPkr2D8q3GBc1
- HASH160
- f932d0188616c964416b91fb9cf76ba9790a921e
- Range start
- 1000
- Range end
- 1fff
- Bit length
- 13-bit
- Keys in range
- 4,096 (4096)
- Transactions
- 6
The solved key
- Private key
- 1460
- Decimal
- 5216
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFUspniiQZds
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 #13 — common questions
How many private keys does Bitcoin puzzle #13 contain?
Puzzle #13 spans the range 2^12 to 2^13−1, which is exactly 4,096 private keys — twice as many as puzzle #12.
How long would it take to solve Bitcoin puzzle #13?
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 #13 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.01322197 BTC.
Is Bitcoin puzzle #13 solved?
Yes. Its private key is 1460 in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFUspniiQZds in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #13?
From 1000 to 1fff in hexadecimal. The address is 1Pie8JkxBT6MGPz9Nvi3fsPkr2D8q3GBc1 and its HASH160 is f932d0188616c964416b91fb9cf76ba9790a921e.