Brief Receipt

4eae72af-685a-48d5-aeab-fbcf92ec786d

Ed25519 signature Valid

Signed by published key Yes

All sources live (200) Yes

Attested facts

Content hash (SHA-256)	8c847f7a853ebc97e4da38e39d47b48b0c38ccf0a54022a823db32e917501463
Model	claude-sonnet-4-6 · 2026-06-19
Generated at	2026-06-21T12:43:08.155+00:00
Public key	49326fb2fc3e4361a67037bea7bc64aeb8819c38ea169c560089222e719a2c62

Cited sources — live status

Source	At signing	Now
https://www.bea.gov/data/personal-consumption-expenditures-price-index	200	200 OK
https://fred.stlouisfed.org/graph/fredgraph.csv?id=PCEPI	200	200 OK

Raw signed payload & signature

signature: 108e33b3425d6921db27fbf34cfe54c583a3c60d4eb6b72633f70c8b9f5a6b1e277da88e7c4f8b205ea4542ffa07ef4ec8e0867073e12f298412f15dcb05460b

{
  "v": 1,
  "model": {
    "id": "claude-sonnet-4-6",
    "version": "2026-06-19"
  },
  "sources": [
    {
      "url": "https://www.bea.gov/data/personal-consumption-expenditures-price-index",
      "status": 200,
      "checked_at": "2026-06-21T12:43:07.339Z"
    },
    {
      "url": "https://fred.stlouisfed.org/graph/fredgraph.csv?id=PCEPI",
      "status": 200,
      "checked_at": "2026-06-21T12:43:07.339Z"
    }
  ],
  "content_hash": "8c847f7a853ebc97e4da38e39d47b48b0c38ccf0a54022a823db32e917501463",
  "generated_at": "2026-06-21T12:43:08.155Z"
}

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.