lotterypuzzle atlas

Bitcoin Puzzle record

Bitcoin Puzzle #151

open · address only

15.1 BTC nominal2150 candidate keys

Where it sits on the line

Puzzles #136–#160: search work One column per puzzle; height is the base-2 logarithm of the search steps. Puzzle #151 is highlighted. The line sits at 2^69. #136 · 2^135 #137 · 2^136 #138 · 2^137 #139 · 2^138 #140 · 2^70.5 #141 · 2^140 #142 · 2^141 #143 · 2^142 #144 · 2^143 #145 · 2^73 #146 · 2^145 #147 · 2^146 #148 · 2^147 #149 · 2^148 #150 · 2^75.5 #151 · 2^150 #152 · 2^151 #153 · 2^152 #154 · 2^153 #155 · 2^78 #156 · 2^155 #157 · 2^156 #158 · 2^157 #159 · 2^158 #160 · 2^80.5
  • found
  • open · address only
  • open · public key on chain
  • the line · 269

This puzzle needs about 2150 search steps — above the line (269).

No puzzle above the line has been found yet.

Model: range scan. Every candidate key in the interval is hashed and compared with the address.

How the work is estimated

Record

P2PKH address
13Q84TNNvgcL3HJiqQPvyBb9m4hxjS3jkV
mempool.space Blockstream
HASH160
1a4fb632f0de0c53a0a31d57f840a19e56c645ee
Search class
address-only
No public key on record: the only route is to hash candidate keys and compare them with the address (HASH160).
Candidate interval
2150 → 2151 − 1
start0x40000000000000000000000000000000000000
end0x7fffffffffffffffffffffffffffffffffffff
Interval size1427247692705959881058285969449495136382746624 scalars. Exact BigInt bounds, not a floating estimate.

Snapshot 2 Oct 2026. The reward is the catalog's nominal allocation (N × 0.1 convention from 2023-04-16; earlier spends predate it), not a live balance. A key that matches the address proves the math, not that the coins are still there: check an explorer. Missing fields are omitted, not invented.

Method

Without a catalogued public key the work is sequential HASH160 comparison across the interval, so it grows with the interval size.