{
      "tool_id": "art-128-content-binding-assertion-validator",
      "tool_version": "1.0.0",
      "display_name": "Content Binding Assertion Validator",
      "mcp_name": "validate_content_binding_assertion",
      "mandate_type": "compliance_mandate",
      "wave": 23,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-128-content-binding-assertion-validator.html",
      "description": "Validate hard-binding (c2pa.hash.data/bmff, tamper-evident) vs soft-binding (watermark/fingerprint, survives re-encode). Confirms asset byte-hash matches claimed hard-binding hash. Emits TAMPER_EVIDENT / SOFT_BINDING_ONLY / UNBOUND verdict. Terminal stage.",
      "input_schema_ref": "chaingraph/art-128-content-binding-assertion-validator.html#manifest",
      "consumes": [
        "art-127-dual-layer-disclosure-verifier"
      ],
      "feeds": [],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:60e81365b579a79abf492ac5f0629ac124c93f263ad1a66363dca62be1c898af","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": "LvQnpXBeU9yiZ+VCM2TXCVMa9gx1ASDrJr1yrYirf9gMvjiHRn3hOs/1hg4myungaOcxpEZbZlEoy/dULY/YJSK7gPo22tmQXSlWJ50iu2UexJn2NfhcVdPgX6fwj7faFYGLXikuD4/Nqb0OwgyDhfE2wwelOkvEa+1pMxOrVL8DzqMiZtD3tdMKNVd2Ib8zbDoo0/SC9LxBad9+WI4q3xobj9tL2Q6KLCbqcAbWeI/jB3ojKYgUKnDvVUeXy3/wE0dG/8pjhiqZW/oT69/p8hORubUstpZ9zhnVTM45Ej8eXM0jgNOQj7uEiKS+6K/LxeKf5ipH+yw61V2RZTaUEQ==",
    "journal": {
      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:60e81365b579a79abf492ac5f0629ac124c93f263ad1a66363dca62be1c898af",
      "output": {
        "binding_type": "hard",
        "hard_binding_matches": true,
        "soft_binding_present": false,
        "tamper_evident": true,
        "verdict": "TAMPER_EVIDENT"
      }
    }
  },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }