Bitcoin Puzzle record
Bitcoin Puzzle #66
Where it sits on the line
- found
- open · address only
- open · public key on chain
- the line · 269
This puzzle needs about 265 search steps — below the line (269).
Every puzzle below the line has been found.
Model: range scan. Every candidate key in the interval is hashed and compared with the address.
How the work is estimatedRecord
- Known public key
- 024ee2be2d4e9f92d2f5a4a03058617dc45befe22938feed5b7a6b7282dd74cbdd
- HASH160
- 20d45a6a762535700ce9e0b216e31994335db8a5
- Search class
- historical
- The output has been spent. Dates and labels are catalog attributions, not audited identities.
- Candidate interval
- 265 → 266 − 1
- start0x20000000000000000
- end0x3ffffffffffffffff
- Interval size36893488147419103232 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
- 861068
- Evidence
- On-chain
- Catalog label
- Attribution unknown.
- Transactions
- mempool.space tx Solve transaction · Blockstream
Where the key sat in its range
Published position in range: 25.62%
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.
000000000000000000000000000000000000000000000002832ed74f2b5e35ee
Mentioned in the atlas
Where #66 comes up in the room pages. rooms 11 · mentions 20
- History
-
- 2024-09-12 — #66 spent On-chain
- 2024-09-23 — #130 spent Community reportTimeline
- People
-
- Open gaps on this page Method
- Myths
-
- Sweep with Electrum / a public broadcast. First to the mempool wins. RefutedClaim & operations
- #71 is “next,” so it is due, and therefore easier this year. RefutedFalse hope / EV
- Theories
-
- #66 as a bot-snipe laboratory Speculation
+12 more mentions
- Cases
-
- What the story adds, and does not establish Community reportCase #66 — same-day spends, public broadcast
- What the story adds, and does not establish RefutedCase #69 — key near the start of the range
- What the story adds, and does not establish Community reportCase #130 — eleven days after #66
- FAQ
-
- What is known about puzzle 66? On-chainPeople and stories
- Method
-
- 05 — Publication is not a biconditional MethodHow a P2PKH spend can publish the public key
- Claim
-
- #66 On-chain
- What this page is
- Start
-
- If you ever find a key On-chainA first sitting
- Glossary
-
- scriptSig MethodCrypto objects
- Public broadcast On-chainCatalog unit and publication risk
- Library
-
- Famous spends On-chainCases and people
Method
Historical record. Method notes for open puzzles live on the method page.