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Asherengos

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Asherengos — Demo video

Receipts gives a shared claim a checkable receipt instead of a screenshot of an opinion. Paste text in and Receipts splits it into atomic claims, one fact per claim, each carrying its quoted source span. Each claim gets exactly one of three verdicts: Supported, Unproven, or Contradicted. Thin evidence defaults to Unproven: a claim with no source is never Supported on assertion alone, and if a supplied source cannot be retrieved, the verdict drops to Unproven. Each verdict is issued as a signed receipt — claim, verdict, sources, timestamp, and Ed25519 signature — and anyone can paste that receipt into the verification page to confirm it was issued unaltered. Verification proves issuance only; it does not prove the claim true. That weight stays with the verdict and its sources. The build is Python standard library only, runs locally, and includes a demo and unit tests.

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