Solved
Bitcoin puzzle #62
Bitcoin puzzle #62 has been solved. Its private key is 363d541eb611abee. The address originally held 0.62 BTC, which was swept by whoever found the key first.
Puzzle #62 at a glance
- Total received
- 0.620091 BTC
- Balance now
- 0.0 BTC
- Address
- 1Me6EfpwZK5kQziBwBfvLiHjaPGxCKLoJi
- HASH160
- e26646db84b0602f32b34b5a62ca3cae1f91b779
- Range start
- 2000000000000000
- Range end
- 3fffffffffffffff
- Bit length
- 62-bit
- Keys in range
- 2.30 × 1018 (2305843009213693952)
- Transactions
- 7
The solved key
- Private key
- 363d541eb611abee
- Decimal
- 3908372542507822062
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYpCemuaUp7NigjvtJug
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 #62 — common questions
How many private keys does Bitcoin puzzle #62 contain?
Puzzle #62 spans the range 2^61 to 2^62−1, which is exactly 2.30 × 10^18 private keys — twice as many as puzzle #61.
How long would it take to solve Bitcoin puzzle #62?
An eight-core machine running this browser solver at four million keys per second would need about 18,267 years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 27 days.
How much is Bitcoin puzzle #62 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.620091 BTC.
Is Bitcoin puzzle #62 solved?
Yes. Its private key is 363d541eb611abee in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYpCemuaUp7NigjvtJug in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #62?
From 2000000000000000 to 3fffffffffffffff in hexadecimal. The address is 1Me6EfpwZK5kQziBwBfvLiHjaPGxCKLoJi and its HASH160 is e26646db84b0602f32b34b5a62ca3cae1f91b779.