Solved
Bitcoin puzzle #48
Bitcoin puzzle #48 has been solved. Its private key is ade6d7ce3b9b. The address originally held 0.05 BTC, which was swept by whoever found the key first.
Puzzle #48 at a glance
- Total received
- 0.048 BTC
- Balance now
- 0.0 BTC
- Address
- 1DFYhaB2J9q1LLZJWKTnscPWos9VBqDHzv
- HASH160
- 8661cb56d9df0a61f01328b55af7e56a3fe7a2b2
- Range start
- 800000000000
- Range end
- ffffffffffff
- Bit length
- 48-bit
- Keys in range
- 140,737,488,355,328 (140737488355328)
- Transactions
- 2
The solved key
- Private key
- ade6d7ce3b9b
- Decimal
- 191206974700443
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgdtUGWxHzvDi28MfR
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 #48 — common questions
How many private keys does Bitcoin puzzle #48 contain?
Puzzle #48 spans the range 2^47 to 2^48−1, which is exactly 140,737,488,355,328 private keys — twice as many as puzzle #47.
How long would it take to solve Bitcoin puzzle #48?
An eight-core machine running this browser solver at four million keys per second would need about 1 years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 2 minutes.
How much is Bitcoin puzzle #48 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.048 BTC.
Is Bitcoin puzzle #48 solved?
Yes. Its private key is ade6d7ce3b9b in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgdtUGWxHzvDi28MfR in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #48?
From 800000000000 to ffffffffffff in hexadecimal. The address is 1DFYhaB2J9q1LLZJWKTnscPWos9VBqDHzv and its HASH160 is 8661cb56d9df0a61f01328b55af7e56a3fe7a2b2.