lotterypuzzle atlas

Bitcoin Puzzle record

Bitcoin Puzzle #135

found · spent

13.5 BTC nominal2134 candidate keys

Where it sits on the line

Puzzles #123–#147: search work One column per puzzle; height is the base-2 logarithm of the search steps. Puzzle #135 is highlighted. The line sits at 2^69. #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 #144 · 2^143 #145 · 2^73 #146 · 2^145 #147 · 2^146
  • found
  • open · address only
  • open · public key on chain
  • the line · 269

This puzzle needs about 268 search steps — below the line (269).

Every puzzle below the line has been found.

Model: kangaroo. The public key has been on chain since 2019, so the square-root shortcut applies: about 2 × 2(N−1)/2 group operations.

How the work is estimated

Record

P2PKH address
16RGFo6hjq9ym6Pj7N5H7L1NR1rVPJyw2v
mempool.space Blockstream
Known public key
02145d2611c823a396ef6712ce0f712f09b9b4f3135e3e0aa3230fb9b6d08d1e16
HASH160
3b6f58a75a54bfd85d1bc6c51180fdc732992326
Search class
historical
The output has been spent. Dates and labels are catalog attributions, not audited identities.
Candidate interval
2134 → 2135 − 1
start0x4000000000000000000000000000000000
end0x7fffffffffffffffffffffffffffffffff
Interval size21778071482940061661655974875633165533184 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.

Solution record

Catalog date
Block
959946
Evidence
Cryptographically verified
Catalog label
RetiredCoder (self-attributed)
A spend proves key control, not a forum identity.
Transactions
mempool.space tx Solve transaction · Blockstream Attribution source

Where the key sat in its range

Published position in range: 71.21%

0% · start of rangeend of range · 100%

Published historical scalar (already public)

This hex scalar is already in the public puzzle corpus. It is historical evidence, not a live key to import. This page does not produce WIF and does not handle secret material.

0000000000000000000000000000006d9392a16883f90903d5f78da57af07eb2

Mentioned in the atlas

Where #135 comes up in the room pages. rooms 9 · mentions 12

History
Cases
People
Theories
FAQ
Scale
+4 more mentions
Scale
Challenges
Sources
Library

Method

Historical record. Method notes for open puzzles live on the method page.