{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "HX-Provenance Receipt v1.1 Preview",
  "type": "object",
  "required": ["schema", "run_id", "manifest_sha256", "signature_algorithm", "signature_standard", "scope"],
  "properties": {
    "schema": { "enum": ["hx.provenance.receipt/v1.1", "hx.exact.receipt/v1.1"] },
    "run_id": { "type": "string" },
    "manifest_sha256": { "type": "string", "pattern": "^sha256:" },
    "signature_algorithm": { "const": "ML-DSA-65" },
    "signature_standard": { "const": "FIPS 204 Category 3" },
    "scope": { "type": "string" },
    "claims": { "type": "array", "items": { "type": "object" } }
  }
}