Solved
Bitcoin puzzle #33
Bitcoin puzzle #33 has been solved. Its private key is 1a96ca8d8. The address originally held 0.03 BTC, which was swept by whoever found the key first.
Puzzle #33 at a glance
- Total received
- 0.033 BTC
- Balance now
- 0.0 BTC
- Address
- 187swFMjz1G54ycVU56B7jZFHFTNVQFDiu
- HASH160
- 4e15e5189752d1eaf444dfd6bff399feb0443977
- Range start
- 100000000
- Range end
- 1ffffffff
- Bit length
- 33-bit
- Keys in range
- 4,294,967,296 (4294967296)
- Transactions
- 2
The solved key
- Private key
- 1a96ca8d8
- Decimal
- 7137437912
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9MDGKrXXQL647jj
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 #33 — common questions
How many private keys does Bitcoin puzzle #33 contain?
Puzzle #33 spans the range 2^32 to 2^33−1, which is exactly 4,294,967,296 private keys — twice as many as puzzle #32.
How long would it take to solve Bitcoin puzzle #33?
An eight-core machine running this browser solver at four million keys per second would need about 18 minutes 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 #33 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.033 BTC.
Is Bitcoin puzzle #33 solved?
Yes. Its private key is 1a96ca8d8 in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9MDGKrXXQL647jj in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #33?
From 100000000 to 1ffffffff in hexadecimal. The address is 187swFMjz1G54ycVU56B7jZFHFTNVQFDiu and its HASH160 is 4e15e5189752d1eaf444dfd6bff399feb0443977.