{
      "tool_id": "art-126-ai-act-art50-marking-checker",
      "tool_version": "1.0.0",
      "display_name": "EU AI Act Art. 50 Marking Checker",
      "mcp_name": "check_ai_act_art50_marking",
      "mandate_type": "compliance_mandate",
      "wave": 23,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-126-ai-act-art50-marking-checker.html",
      "description": "Check c2pa.actions for a c2pa.created action whose IPTC digitalSourceType is in the AI set, and that machine-readable marking is present (Art. 50(2) adequacy). For deepfakes also requires Art. 50(4) disclosure. Penalty: 15M EUR / 3% global turnover. Applies 2 August 2026.",
      "input_schema_ref": "chaingraph/art-126-ai-act-art50-marking-checker.html#manifest",
      "consumes": [],
      "feeds": [
        "art-127-dual-layer-disclosure-verifier"
      ],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:7b3eb5f17b46b43c54e96195da8716c39b2eccc9ac75080186ff0dd578e31411","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": "EyoY2v6v9wtm1edL4oRFWwF/pNQ6zEVj01Q0C+hzeGYDp6IjxYilAsF1VipLVgzsHSRyLM6tWFsmYU5KSHeEgCTcmIJjftXX7mG7lXk43BAf1frQmKx6Y59quABkhxvbHHkmfX89ptNNcOqavBm+N2nrr4Xbr1LFYofbKM6dYVMsR0+txMgDV+4NUSjGeVWFm7rm/zWjwmMB26PcuSMtlSj7eY4olXFO6tGZ34LK46Ot+AZcsh4WwaHA6sinmu7vFw7x+6VcJyJwo8/hBF/YdEOdF+17z7uRMj9xqOZuqH8M62K+zdd4L6YQSY9yjDbJ7X8FVJD8ZbInRKmhrNo3LA==",
    "journal": {
      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:7b3eb5f17b46b43c54e96195da8716c39b2eccc9ac75080186ff0dd578e31411",
      "output": {
        "ai_marking_present": true,
        "art50_conformant": true,
        "deepfake_disclosure_ok": true,
        "gaps": [],
        "source_type": "trainedAlgorithmicMedia",
        "source_type_recognized": true
      }
    }
  },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }