{
  "tool_id": "art-447-securitization-risk-retention-check",
  "tool_version": "1.0.0",
  "display_name": "Securitization Risk Retention Check",
  "mcp_name": "check_securitization_risk_retention",
  "mandate_type": "compliance_mandate",
  "wave": 73,
  "gpu": false,
  "url": "https://ainumbers.co/chaingraph/art-447-securitization-risk-retention-check.html",
  "description": "EU Securitisation Regulation (EU) 2017/2402 Art.6 and U.S. Credit Risk Retention Rule (Dodd-Frank Sec.941, Reg RR, 12 CFR Part 244) 5% risk-retention checker: verifies the originator/sponsor/original-lender retains at least 5% net economic interest via a recognized method (vertical slice, horizontal first-loss, L-shaped, representative sample, seller's interest), applies the U.S. Qualified Residential Mortgage (QRM) exemption where flagged, and flags EU-specific structural breaches -- retainer sole-purpose-entity prohibition and retained-interest hedging/sale. Deterministic point-in-time structural check from caller-supplied retention method, exposure/retained amounts, and jurisdiction-specific flags for a single reporting date. Not a compute_rbc_action_level (NAIC insurer capital ladder) or calculate_solvency2_scr_ratio (EU insurer capital) check -- this is bank/ABS securitization risk-retention structure, not insurer solvency.",
  "input_schema_ref": "chaingraph/art-447-securitization-risk-retention-check.html#manifest",
  "consumes": [],
  "feeds": [],
  "status": "live",
  "conformance_fixtures": true,
  "compute_capability": "server",
  "compute_images": [
    {
      "system": "sha256-source",
      "image_id": "sha256:7c47eb66621889efcbc72476358adf9d81118f0c4692dc01375cb7251f1ada8e",
      "valid_from": "2026-07-10"
    },
    {
      "system": "risc0",
      "image_id": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
      "valid_from": "2026-07-23"
    }
  ],
  "compute_proof_ready": "ready",
  "compute_proof": {
    "type": "ZkVmReceipt",
    "system": "risc0",
    "receiptFormat": "groth16-bn254",
    "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
    "seal": "Gdkh0NijknB/AKsI6ozkuZMioNmy5jfdYISM6PoJMF0nHIysYnr9W3QG+dRMVz/iommYeEH26WPLfMe38BW/gQIHqj6p5GjBdV0bf8rIAcnyu04noGSqZJPQJoxb/W9BIyk6kJ7hgVKqySBYdN8DHchFDZJoq99VE3RZUocHDiMFd20Y3PV5BBdY0uSEczGjazr5o7DCW7lprLsxZ4+srA9qSUgVHwfZdrgEXc08EqUN4I0/aBlrN3Noplam7UilIyVIf9Ds4thwdKzhMtznX25PtwwQh3GILr6eVX9qFSMMGRBiM+F98s0MY1kKev59KBUZhOn0iea9e1XNqbRW8g==",
    "journal": {
      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:7c47eb66621889efcbc72476358adf9d81118f0c4692dc01375cb7251f1ada8e",
      "output": {
        "actual_retention_pct": 5,
        "breach_reasons": [],
        "compliant": true,
        "jurisdiction": "eu",
        "note": "Deterministic structural check from caller-supplied retention method, exposure/retained nominal amounts, and jurisdiction-specific flags for a single reporting date.",
        "qrm_exemption_applied": false,
        "regulatory_basis": "EU Securitisation Regulation (EU) 2017/2402 Art.6 (originator/sponsor/original-lender net economic interest, ongoing 5% retention, no hedging/sale, sole-purpose-entity prohibition); U.S. Credit Risk Retention Rule (Dodd-Frank Sec.941, Reg RR, 12 CFR Part 244) 5% base retention with Sec_.19 Qualified Residential Mortgage exemption.",
        "required_retention_pct": 5,
        "retained_amount_musd": 100,
        "retained_interest_hedged_or_sold": false,
        "retainer_is_sole_purpose_entity": false,
        "retention_method": "vertical_slice",
        "retention_method_valid": true,
        "total_securitized_exposure_musd": 2000
      }
    }
  }
}