lotterypuzzle atlas

Bitcoin Puzzle record

Bitcoin Puzzle #131

open · address only

13.1 BTC nominal2130 candidate keys

Where it sits on the line

Puzzles #119–#143: search work One column per puzzle; height is the base-2 logarithm of the search steps. Puzzle #131 is highlighted. The line sits at 2^69. #119 · 2^118 #120 · 2^60.5 #121 · 2^120 #122 · 2^121 #123 · 2^122 #124 · 2^123 #125 · 2^63 #126 · 2^125 #127 · 2^126 #128 · 2^127 #129 · 2^128 #130 · 2^65.5 #131 · 2^130 #132 · 2^131 #133 · 2^132 #134 · 2^133 #135 · 2^68 #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
  • found
  • open · address only
  • open · public key on chain
  • the line · 269

This puzzle needs about 2130 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
16zRPnT8znwq42q7XeMkZUhb1bKqgRogyy
mempool.space Blockstream
HASH160
41b4b36a6c036568972380177eca2916cacd71de
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
2130 → 2131 − 1
start0x400000000000000000000000000000000
end0x7ffffffffffffffffffffffffffffffff
Interval size1361129467683753853853498429727072845824 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.