Solved
Bitcoin puzzle #69
Bitcoin puzzle #69 has been solved. Its private key is 101d83275fb2bc7e0c. The address originally held 6.90 BTC, which was swept by whoever found the key first.
Puzzle #69 at a glance
- Total received
- 6.90046533 BTC
- Balance now
- 0.0 BTC
- Address
- 19vkiEajfhuZ8bs8Zu2jgmC6oqZbWqhxhG
- HASH160
- 61eb8a50c86b0584bb727dd65bed8d2400d6d5aa
- Range start
- 100000000000000000
- Range end
- 1fffffffffffffffff
- Bit length
- 69-bit
- Keys in range
- 2.95 × 1020 (295147905179352825856)
- Transactions
- 26
The solved key
- Private key
- 101d83275fb2bc7e0c
- Decimal
- 297274491920375905804
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qefJjCmLAPHbQ4x7D9Qy
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 #69 — common questions
How many private keys does Bitcoin puzzle #69 contain?
Puzzle #69 spans the range 2^68 to 2^69−1, which is exactly 2.95 × 10^20 private keys — twice as many as puzzle #68.
How long would it take to solve Bitcoin puzzle #69?
An eight-core machine running this browser solver at four million keys per second would need about 2.34 million years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 9 years.
How much is Bitcoin puzzle #69 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 6.90046533 BTC.
Is Bitcoin puzzle #69 solved?
Yes. Its private key is 101d83275fb2bc7e0c in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qefJjCmLAPHbQ4x7D9Qy in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #69?
From 100000000000000000 to 1fffffffffffffffff in hexadecimal. The address is 19vkiEajfhuZ8bs8Zu2jgmC6oqZbWqhxhG and its HASH160 is 61eb8a50c86b0584bb727dd65bed8d2400d6d5aa.