Unsolved
Bitcoin puzzle #152
Bitcoin puzzle #152 is unsolved. It holds 15.20 BTC, and its private key is an unknown number between 2151 and 2152−1 — a keyspace of 2.85 × 1045 possible keys. You can search that range with the solver below; it runs in your browser and never sends anything to a server.
Solver — #152
IdleJump to a random point in the range, sweep a block of keys, jump again. Best when many people search the same puzzle.
Each thread is one Web Worker on one core. Leaving a core free keeps the page responsive.
Walk the range in order from your start key up to the end of the range, splitting that region evenly across threads. Keys below the start key are not searched. Best when you are coordinating a systematic sweep.
Range covered: 0%
· Current key: 80000000000000000000000000000000000000
Puzzle #152 at a glance
- Reward
- 15.20001 BTC
- Address
- 1LuUHyrQr8PKSvbcY1v1PiuGuqFjWpDumN
- HASH160
- da56cd815fa2f0d6a4ce6d25ed7b1a01d9f9bc6b
- Range start
- 80000000000000000000000000000000000000
- Range end
- ffffffffffffffffffffffffffffffffffffff
- Bit length
- 152-bit
- Keys in range
- 2.85 × 1045 (2854495385411919762116571938898990272765493248)
- Transactions
- 4
The arithmetic
The range for puzzle #152 contains 2.85 × 1045 private keys. A modern eight-core laptop running this solver checks on the order of four million keys per second, so an exhaustive sweep would take about 2..2 × 1020 years. Searching randomly instead of in order does not change that expectation — it only changes which unlucky order you fail in.
Puzzle #152 — common questions
How many private keys does Bitcoin puzzle #152 contain?
Puzzle #152 spans the range 2^151 to 2^152−1, which is exactly 2.85 × 10^45 private keys — twice as many as puzzle #151.
How long would it take to solve Bitcoin puzzle #152?
An eight-core machine running this browser solver at four million keys per second would need about 2..2 × 10^20 years to sweep the whole range. A pooled GPU cluster reaching one trillion keys per second would need about 9..0 × 10^20 years.
How much is Bitcoin puzzle #152 worth?
The address holds 15.20001 BTC, roughly $1,189,476 at a reference price of $78,255 per BTC.
Is Bitcoin puzzle #152 solved?
No. #152 is one of the 78 unsolved puzzles. Its public key has never been exposed, so square-root methods like Pollard's Kangaroo do not apply — brute force over the range is the only option.
What is the key range for puzzle #152?
From 80000000000000000000000000000000000000 to ffffffffffffffffffffffffffffffffffffff in hexadecimal. The address is 1LuUHyrQr8PKSvbcY1v1PiuGuqFjWpDumN and its HASH160 is da56cd815fa2f0d6a4ce6d25ed7b1a01d9f9bc6b.