lotterypuzzle atlas

Bitcoin Puzzle record

Bitcoin Puzzle #97

open · address only

9.7 BTC nominal296 candidate keys

Where it sits on the line

Puzzles #85–#109: search work One column per puzzle; height is the base-2 logarithm of the search steps. Puzzle #97 is highlighted. The line sits at 2^69. #85 · 2^43 #86 · 2^85 #87 · 2^86 #88 · 2^87 #89 · 2^88 #90 · 2^45.5 #91 · 2^90 #92 · 2^91 #93 · 2^92 #94 · 2^93 #95 · 2^48 #96 · 2^95 #97 · 2^96 #98 · 2^97 #99 · 2^98 #100 · 2^50.5 #101 · 2^100 #102 · 2^101 #103 · 2^102 #104 · 2^103 #105 · 2^53 #106 · 2^105 #107 · 2^106 #108 · 2^107 #109 · 2^108
  • found
  • open · address only
  • open · public key on chain
  • the line · 269

This puzzle needs about 296 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
18ywPwj39nGjqBrQJSzZVq2izR12MDpDr8
mempool.space Blockstream
HASH160
578d94dc6f40fff35f91f6fba9b71c46b361dff2
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
296 → 297 − 1
start0x1000000000000000000000000
end0x1ffffffffffffffffffffffff
Interval size79228162514264337593543950336 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.