{
      "tool_id": "art-71-cbam-certificate-cost-engine",
      "tool_version": "1.0.0",
      "display_name": "CBAM Certificate Cost & Free-Allocation Engine",
      "mcp_name": "model_cbam_certificate_cost",
      "mandate_type": "compliance_mandate",
      "wave": 16,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-71-cbam-certificate-cost-engine.html",
      "description": "Converts embedded emissions into a CBAM certificate liability: applies the CBAM factor (free-allocation phase-out 2.5% 2026 to 100% 2034), deducts origin carbon price already paid, and projects the quarterly holding and surrender schedule to the 30 Sep deadline.",
      "input_schema_ref": "chaingraph/art-71-cbam-certificate-cost-engine.html#manifest",
      "consumes": [
        "art-69-cbam-embedded-emissions-calculator"
      ],
      "feeds": [
        "cry-05-agent-action-audit-trail-aggregator",
        "art-76-climate-scenario-applicator"
      ],
      "status": "live",
      "conformance_fixtures": false,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:80df4fc1195a5177c803aad81d51aabbfad003ca7e5c117591b4f557b278f2d9","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": "K7ExJNwlFNPf6tty3hVvFRVtBhcv/zGVigTunSdhAdcNShwN4TGgxy/SRGICpJybMpoSUrtp1F1asm6r79Y24S5Lldv/NZic5YUPbTkHeuL2DCzGXaKbZqcpaDoemHlDLveEsmJZgO8RSSl5Vno5IGd3CXqhnURlajv4cEZUqpsMI5QuQtKqezgRnuXZS/MUw5CUalFfWhrJ2hBlry+OvRvD/0UXyEgnckAN5eGIoIbDD4MmFOcBv7OB7d66RWynDuK4v7CzU2PQTiOperOvSyn5sQNdh9WdLoXQFn8awJQm35f9eG89IQQ16gcblg3JRiqXZqZyymxiqpbjy37WJQ==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:80df4fc1195a5177c803aad81d51aabbfad003ca7e5c117591b4f557b278f2d9",
          "output": {
            "cbam_factor": 0.025,
            "cbam_factor_applied": 0.025,
            "cbam_factor_year": 2026,
            "certificate_liability_eur": 0,
            "certificates_required": 0,
            "eua_reference_price": 65,
            "free_allocation_phaseout_pct": 97.5,
            "gross_liability_tco2e": 0,
            "net_liability_eur": 0,
            "note": "DECISION-SUPPORT DRAFT — not an official CBAM declaration. Certificate liability depends on actual EUA auction prices and origin carbon-price verification. Verify surrender deadline (30 Sep) + holding obligation (≥80% rolling) against CBAM Reg. Arts 21–22. CBAM factor schedule: verify Annex V edition.",
            "origin_price_credit": 0,
            "quarterly_holding_schedule": [],
            "reference": {
              "cbam_factor_source": "CBAM Reg. 2023/956 Annex V — verify current edition",
              "eua_price_note": "EUA reference price is a user-supplied input. Verify against current CBAM certificate auction prices (quarterly 2026, weekly 2027+).",
              "reference_version": "CBAM-IR-v1.0-2024-Q4"
            },
            "surrender_deadline": "30 Sep 2027"
          }
        }
      },
      "export_capability": [
        "pdf",
        "xlsx"
      ]
    }