Solved
Bitcoin puzzle #36
Bitcoin puzzle #36 has been solved. Its private key is 9de820a7c. The address originally held 0.04 BTC, which was swept by whoever found the key first.
Puzzle #36 at a glance
- Total received
- 0.036 BTC
- Balance now
- 0.0 BTC
- Address
- 1Be2UF9NLfyLFbtm3TCbmuocc9N1Kduci1
- HASH160
- 74b1e012be1521e5d8d75e745a26ced845ea3d37
- Range start
- 800000000
- Range end
- fffffffff
- Bit length
- 36-bit
- Keys in range
- 34,359,738,368 (34359738368)
- Transactions
- 2
The solved key
- Private key
- 9de820a7c
- Decimal
- 42387769980
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9Mg1Upu7eJAtiDr
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 #36 — common questions
How many private keys does Bitcoin puzzle #36 contain?
Puzzle #36 spans the range 2^35 to 2^36−1, which is exactly 34,359,738,368 private keys — twice as many as puzzle #35.
How long would it take to solve Bitcoin puzzle #36?
An eight-core machine running this browser solver at four million keys per second would need about 2 hours 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 #36 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.036 BTC.
Is Bitcoin puzzle #36 solved?
Yes. Its private key is 9de820a7c in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9Mg1Upu7eJAtiDr in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #36?
From 800000000 to fffffffff in hexadecimal. The address is 1Be2UF9NLfyLFbtm3TCbmuocc9N1Kduci1 and its HASH160 is 74b1e012be1521e5d8d75e745a26ced845ea3d37.