{
      "tool_id": "art-122-timestamp-attestation-verifier",
      "tool_version": "1.0.0",
      "display_name": "Timestamp Attestation Verifier",
      "mcp_name": "verify_timestamp_attestation",
      "mandate_type": "compliance_mandate",
      "wave": 22,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-122-timestamp-attestation-verifier.html",
      "description": "Recompute the document integrity anchor, confirm the document hash and timestamp claim match and the algorithm is consistent. Terminal stage of document-integrity-anchor chain.",
      "input_schema_ref": "chaingraph/art-122-timestamp-attestation-verifier.html#manifest",
      "consumes": [
        "art-121-document-integrity-anchor"
      ],
      "feeds": [],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:88a9d131ffff2a2a578a46cabdc2f1b0987df22f56462b7eee51dedc4fb65120","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": "GGNZYuwZGb7WozERmzFW/sPWGdk7TqdkzJ4WnPuxzfAowGJcEJLuA3j1DiD5reffLDB3dyAmwXnmfbwlkiSsQRF6Ko4NWx7e71to+QlY0UV6RfZNfKdfT1QjN6vNJRNeCnOZODFHbA635oF9X+5Qgug/+GIj7NVsKW/UY2DhEmAhK9HTj4HA9UAtsICM5jPfnWTNJDGDwzdPnn8w0u33kQ+/2Tx4roSRxGJnKL2LlKKIFU8vblx5OrndF1mTOvo8IE2RESj8vei8L7dyohUl4sSZce1poTL6C0E2oT5ocUMp0yqbaK9qU7HqU87TKusbA49OBETBLzvsyt7TjxjDoA==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:5a374bb17c219f2cce15961d464105003d85550f6ff75af809bd26bab64ba663",
          "output": {
            "algo_match": true,
            "hash_match": true,
            "ts_consistent": true,
            "verified": true
          }
        }
      }
    }