Brief Receipt

65c719c5-3bf0-4e58-9397-6b6c8d786791

Ed25519 signature Valid

Signed by published key Yes

All sources live (200) Yes

Attested facts

Content hash (SHA-256)	465e02f3146e62c1e02d4de6da446d9cd29fee5b4cbf1c67490429ad9326fcf0
Model	claude-sonnet-4-6 · 2026-06-19
Generated at	2026-06-21T12:43:02.602+00:00
Public key	49326fb2fc3e4361a67037bea7bc64aeb8819c38ea169c560089222e719a2c62

Cited sources — live status

Source	At signing	Now
https://data.bls.gov/timeseries/CES0000000001	200	200 OK
https://fred.stlouisfed.org/graph/fredgraph.csv?id=PAYEMS	200	200 OK

Raw signed payload & signature

signature: 939a38eeee795e85b1683394c921be2150ef24d60ecbc5c3c7553bd7f282386d76b36fee0ac47c4975340c602a7764e9b02d1a5d5475898e97e0d55c4ce30703

{
  "v": 1,
  "model": {
    "id": "claude-sonnet-4-6",
    "version": "2026-06-19"
  },
  "sources": [
    {
      "url": "https://data.bls.gov/timeseries/CES0000000001",
      "status": 200,
      "checked_at": "2026-06-21T12:43:02.123Z"
    },
    {
      "url": "https://fred.stlouisfed.org/graph/fredgraph.csv?id=PAYEMS",
      "status": 200,
      "checked_at": "2026-06-21T12:43:02.123Z"
    }
  ],
  "content_hash": "465e02f3146e62c1e02d4de6da446d9cd29fee5b4cbf1c67490429ad9326fcf0",
  "generated_at": "2026-06-21T12:43:02.602Z"
}

Re-verify independently with the published key at /.well-known/kitalpha-provenance.json. Learn how this works on the provenance page.

Voluntary transparency aligned with the spirit of EU AI Act Article 50 (transparency obligations for AI-generated content, applying 2 August 2026). This is trust infrastructure and general information only — not a legal-compliance claim and not legal advice.