{
      "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":"sha256:57b6f19cdf64a9288e4ff13b21078dce42b714bd0e9596f5be911756fe634bce","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": "G/OmVoDwIzznDD9FWb4tVUoNxXQRGK+PlKpTRrtRiUAgC5nFECD7nowkxHjO9FeZgFhQOhsvkRN2ANvIzQBMgQvaVjvG79bN28glvejifhPusQGhzWSaS2LwVfbwpHNXDBrAWtj20NGNEbCkql2FQYAd/dco20G+JTXAQY/gVSgKVlc03MHkAW4DzAFw1XBixAc1oCTcsFRsJwK3Ko6Tmy6hpn137+sX8yfkfUC8XIRbq/NfUZT2slVH2znz5oYsDK/mHbvkchZ0mrndHONlpR7lX6RAJX5EQ/nO/T69Jhkg+i5b3d3gWsUYSOWe82qgJ9TcACJpfE7F/HFQhfggew==",
    "journal": {
      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:57b6f19cdf64a9288e4ff13b21078dce42b714bd0e9596f5be911756fe634bce",
      "output": {
        "assertion_count": 2,
        "has_actions": true,
        "has_hard_binding": true,
        "manifest_valid": true,
        "missing_elements": []
      }
    }
  },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }