Solved
Bitcoin puzzle #70
Bitcoin puzzle #70 has been solved. Its private key is 349b84b6431a6c4ef1. The address originally held 0.70 BTC, which was swept by whoever found the key first.
Puzzle #70 at a glance
- Total received
- 0.70071362 BTC
- Balance now
- 0.0 BTC
- Address
- 19YZECXj3SxEZMoUeJ1yiPsw8xANe7M7QR
- HASH160
- 5db8cda53a6a002db10365967d7f85d19e171b10
- Range start
- 200000000000000000
- Range end
- 3fffffffffffffffff
- Bit length
- 70-bit
- Keys in range
- 5.90 × 1020 (590295810358705651712)
- Transactions
- 7
The solved key
- Private key
- 349b84b6431a6c4ef1
- Decimal
- 970436974005023690481
- WIF
- KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qt5RQNhFCn1r58in2E78
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 #70 — common questions
How many private keys does Bitcoin puzzle #70 contain?
Puzzle #70 spans the range 2^69 to 2^70−1, which is exactly 5.90 × 10^20 private keys — twice as many as puzzle #69.
How long would it take to solve Bitcoin puzzle #70?
An eight-core machine running this browser solver at four million keys per second would need about 4.68 million years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 19 years.
How much is Bitcoin puzzle #70 worth?
The address was swept when it was solved, so there is no claimable reward now. It originally received 0.70071362 BTC.
Is Bitcoin puzzle #70 solved?
Yes. Its private key is 349b84b6431a6c4ef1 in hexadecimal, or KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qt5RQNhFCn1r58in2E78 in WIF format. The balance was spent once the key became known.
What is the key range for puzzle #70?
From 200000000000000000 to 3fffffffffffffffff in hexadecimal. The address is 19YZECXj3SxEZMoUeJ1yiPsw8xANe7M7QR and its HASH160 is 5db8cda53a6a002db10365967d7f85d19e171b10.