Solved
Bitcoin puzzle #120
Bitcoin puzzle #120 has been solved. Its private key is b10f22572c497a836ea187f2e1fc23. The address originally held 1.20 BTC, which was swept by whoever found the key first.
Puzzle #120 at a glance
- Total received
- 1.20001 BTC
- Balance now
- 0.0 BTC
- Address
- 17s2b9ksz5y7abUm92cHwG8jEPCzK3dLnT
- HASH160
- 4b46e10a541aeec6be3fac709c256fb7da69308e
- Range start
- 800000000000000000000000000000
- Range end
- ffffffffffffffffffffffffffffff
- Bit length
- 120-bit
- Keys in range
- 6.64 × 1035 (664613997892457936451903530140172288)
- Transactions
- 5
The solved key
- Private key
- b10f22572c497a836ea187f2e1fc23
- Decimal
- 919343500840980333540511050618764323
- WIF
- KwDiBf89QgGbjEhKnhXJuH7Lu5nahGjEQZB8k82itXNSb1Aa2Woh
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 #120 — common questions
How many private keys does Bitcoin puzzle #120 contain?
Puzzle #120 spans the range 2^119 to 2^120−1, which is exactly 6.64 × 10^35 private keys — twice as many as puzzle #119.
How long would it take to solve Bitcoin puzzle #120?
An eight-core machine running this browser solver at four million keys per second would need about 5..2 × 10^20 years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 2.10 × 10^16 years.
How much is Bitcoin puzzle #120 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 1.20001 BTC.
Is Bitcoin puzzle #120 solved?
Yes. Its private key is b10f22572c497a836ea187f2e1fc23 in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7Lu5nahGjEQZB8k82itXNSb1Aa2Woh in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #120?
From 800000000000000000000000000000 to ffffffffffffffffffffffffffffff in hexadecimal. The address is 17s2b9ksz5y7abUm92cHwG8jEPCzK3dLnT and its HASH160 is 4b46e10a541aeec6be3fac709c256fb7da69308e.