How this receipt has changed
Napoleon Bonaparte died of arsenic poisoning.
Published on 16 Oct 2026, now at version 2. Each rewrite keeps the version it replaced, with the reason and the engine that wrote it.
Weight is the one the receipt's balance bar uses: every source counts 1, plus a bounded bonus for how often it has been cited, so one famous paper cannot outweigh three dissenting ones (at most 3x a bare source). It is a reading aid built from facts the receipt already stores, not the engine's confidence.
The same numbers as a table
| Version | Verdict | For | Against | Weight for | Weight against | From |
|---|---|---|---|---|---|---|
| v1 | CONTESTED | 2 | 6 | 2.3 | 6.05 | 2026-10-16 |
| v2 | CONTESTED | 2 | 5 | 2.3 | 5.0 | 2026-10-17 |
Every version
- Version 2 (current) engine 3184fec3bb4ea87b3a8637a367f41093da016629in effect since 17 Oct 2026CONTESTED2 for, 5 against
- Version 1 engine b999fe5f3replaced on 17 Oct 2026: a fresh engine pass passed the publish gate and replaced this receipt's payload at the same URL; the previous payload stays in the version archiveCONTESTED2 for, 6 againstCompared with the next version: the verdict did not change; added 1 source: “Napoleon Bonaparte—no evidence of chronic arsenic poisoning”; removed 2 sources: “Elemental contents in Napoleon's hair cut before and after his death: did Napoleon die of arsenic poisoning?”; “Did poisoning play a role in Napoleon's death? A systematic review.”.
Paper trail
- receipt updated17 Oct 2026