{
      "tool_id": "art-91-ownership-50pct-aggregator",
      "tool_version": "1.0.0",
      "display_name": "Ownership 50%-Rule Aggregator",
      "mcp_name": "aggregate_ownership_50pct",
      "mandate_type": "compliance_mandate",
      "wave": 19,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-91-ownership-50pct-aggregator.html",
      "description": "Walks a synthetic ownership graph; computes direct + indirect + aggregate listed stakes per node; applies OFAC, EU, and BIS Affiliates Rule (in force 29 Sep 2025) 50%-thresholds to determine constructively-blocked entities. Pure graph math, synthetic entities only.",
      "input_schema_ref": "chaingraph/art-91-ownership-50pct-aggregator.html#manifest",
      "consumes": [
        "art-90-sanctions-screening-fit-diagnostic"
      ],
      "feeds": [
        "art-92-screening-list-coverage-checker",
        "cry-05-agent-action-audit-trail-aggregator"
      ],
      "status": "live",
      "conformance_fixtures": false,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:f1505eeba83572c78e56a22d102dca7aae6db7cbefab4c87b98653969f191037","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": "JsGu+4uG4EHtEFuujQc9OCOvHLaAumiJcYTqgVQMpO4ZyNrCJo6xkuLOfOu2x0nB6MTp9PjZUIqK4N9A9fWn0SOUx1ElcYGeLsVy8hi54d3K0R30mUBTlvO16y/p4p3GEf7A3kuCW2Vz81NbNvfNt0Se/X1iNkovaorriSTUBfEpxvrincG8h3oQPNzYut4c02/V5uAjNXcO3s+i7EMNtCpBrRjD/Ronfh7GGjUPzz8AJfTR4lnUY2k/pnr8kNKrFEVWsociStPVFKIvQsnk7qUEo5eMp/ZHVbBTi0UGGOgTyxaxtDyrRRwr80mB/kGgXfymWjpjrNYgYBGjwyZCVQ==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:f1505eeba83572c78e56a22d102dca7aae6db7cbefab4c87b98653969f191037",
          "output": {
            "blocked_count": 0,
            "entity_verdicts": [],
            "listed_entity_count": 0,
            "note": "SYNTHETIC DATA ONLY. No real entities assessed. Verify OFAC/EU/BIS thresholds against current official guidance.",
            "reference_version": "2026-06",
            "summary": "Empty graph — no entities to evaluate."
          }
        }
      },
      "export_capability": [
        "pdf",
        "xlsx"
      ]
    }