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Guest listing — FactStamp. For a document that quotes figures, names companies or cites papers: post the text and every checkable claim comes back verified against dated primary sources, as one signed bundle with a per-claim receipt and its licence. Claims we cannot answer are named and never charged, and the preview is free. Verdicts: verified, stale, contradicted, unknown. Prose, not a list: a bare bibliography belongs to /bulk.

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{
  "answered": 2,
  "charged_credits": 2,
  "claims": [
    {
      "as_of": "2026-08-01",
      "claim": "The RBA cash rate was 4.35% as at August 2026",
      "kind": "figure",
      "source": "Reserve Bank of Australia",
      "verdict": "contradicted"
    },
    {
      "as_of": "2026-10-06",
      "claim": "Shopify Inc. is registered in Canada",
      "kind": "entity",
      "source": "GLEIF",
      "verdict": "verified"
    }
  ],
  "claims_found": 3,
  "document_sha256": "9f2c…",
  "receipt": "eyJhbGciOiJFZERTQSJ9…",
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}