lotterypuzzle atlas

Bitcoin Puzzle record

Bitcoin Puzzle #158

open · address only

15.8 BTC nominal2157 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 #158 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 2157 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
19z6waranEf8CcP8FqNgdwUe1QRxvUNKBG
mempool.space Blockstream
HASH160
628dacebb0faa7f81670e174ca4c8a95a7e37029
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
2157 → 2158 − 1
start0x2000000000000000000000000000000000000000
end0x3fffffffffffffffffffffffffffffffffffffff
Interval size182687704666362864775460604089535377456991567872 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.