{
      "tool_id": "art-123-c2pa-manifest-validator",
      "tool_version": "1.0.0",
      "display_name": "C2PA Content Credential Manifest Validator",
      "mcp_name": "validate_c2pa_manifest",
      "mandate_type": "compliance_mandate",
      "wave": 23,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-123-c2pa-manifest-validator.html",
      "description": "Validate a decoded C2PA 2.x manifest: claim well-formedness, hard-binding hash assertion, and claim-signature reference. Feeds the Content Credential signature verifier (art-124). Underpins EU AI Act Art. 50 machine-readable marking (applies 2 Aug 2026).",
      "input_schema_ref": "chaingraph/art-123-c2pa-manifest-validator.html#manifest",
      "consumes": [],
      "feeds": [
        "art-124-content-credential-signature-verifier"
      ],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:e2191fb2c1cfcbbec083616921861612aebe0dd75f823fe782a6fc1d301f70c8","valid_from":"2026-07-10"},{"system":"risc0","image_id":"sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6","valid_from":"2026-06-28"}],
      "compute_proof": {
        "type": "ZkVmReceipt",
        "system": "risc0",
        "receiptFormat": "groth16-bn254",
        "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
        "seal": "A12WmsbfYcQoak3IaUdEsMXOrkLGn5/UuSI1XQqi5Z8FA9B6X+uzy/vtzjYNKg0CjCA7yVylqFKHVCEqFVYYTSrpqWemTtaXN4FWQ88ux0Ab5T3CR7TYCeAY8UVt9jq2DgahzBHxj8amRzOLOjOUUed8Vo3SzfH+t+PYDZKBrAcb6NoDoeJUHXpVU/XAXQIrZftDXq8hieoxcNiGKHHO8hpJjMkyso3PZCzDrA971ihF2syq+KWNoMfuOkhaHmE2J2C4yNYt36csd/RzvuOQ0HOSK7mb2jjxGmf49Ifu0yoPDGJq62OtY7UrmPfRsc7POnPouPvGoTocaNZK+7Ch6w==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:80b76cb6d6fcdd91d2018e6ef3259e806e4e87d76f5e6018448d5ee3f524a970",
          "output": {}
        }
      },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }