{
      "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":"sha256:37bac36fc216d5a8a8c3828b47eaa645982663dd39ebcbd34e14dfd78ddead1f","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": "Fio3hm6FfLOVVa6KFiYYRYfn0GUiYMXtKuyOO98c8n0linhseN+mJ5qz2Yjmjoxyi8Uzh73SGWAPc7H24NZVbx9iCGRVgwIXAQJhavdG5H/p/q6f4XJMLzCPQAyB3LaZE/zyTV7lxj1CwVenEtIDXygKhh6DHeLVFWG+uDyxWFgM6eJyRMK3ml3qQNSllLUEymi45WkIi3EoMGf7nwUOIykuiWZW5V9BcwXyx8DPNCXPjcDyxbhE6NbTnJ9Gqr7wB2iJgJO8MfBbQqA6Ts8mgVsFpsB8G6DppTqC2p2j2SYQ/BKhrRgsxsctUw5MAekx8Si4ctwnmUcx1U5uv9nRmQ==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:8b845be829dad04a632712212b54bc9449cbc940642f29d007acb77e67a4b826",
          "output": {}
        }
      },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }