{
  "tool_id": "art-546-dtcc-ca-iso20022-validator",
  "kernel_id": "art-546-dtcc-ca-iso20022-validator",
  "display_name": "DTC Corporate Actions ISO 20022 Message Validator",
  "tool_version": "1.0.0",
  "mandate_type": "compliance_mandate",
  "purpose": "Validates the structural message-shape of a single DTC corporate-action event message (notification / election / allocation) against the ISO 20022 field set migrated under DTCC Important Notice 23890-26 (legacy corporate-actions message format decommission -- a DTCC operator mandate, not a regulatory deadline: PSE testing 2026-01, Test Facility 2026-03, PROD testing 2026-07, legacy decommission Q3 2027). Checks required-field presence per message function, ISO 20022 CAEV event-type code, CUSIP format, DTC participant number, and date formats. Message-shape validation only -- does NOT compute entitlement, dividend, rights, or split amounts; that half is corporate-action entitlement recompute (art-547), which chains from this node's output.",
  "control_description": "Validates the structural message-shape of a single DTC corporate-action event message (notification / election / allocation) against the ISO 20022 field set migrated under DTCC Important Notice 23890-26 (legacy corporate-actions message format decommission -- a DTCC operator mandate, not a regulatory deadline: PSE testing 2026-01, Test Facility 2026-03, PROD testing 2026-07, legacy decommission Q3 2027). Checks required-field presence per message function, ISO 20022 CAEV event-type code, CUSIP format, DTC participant number, and date formats. Message-shape validation only -- does NOT compute entitlement, dividend, rights, or split amounts; that half is corporate-action entitlement recompute (art-547), which chains from this node's output.",
  "declared_inputs": [],
  "declared_outputs": [
    "art-547-corporate-action-entitlement-recompute"
  ],
  "kernel_digest": "sha256:d75e8ba52e5757fe63fdf1f096b7135b083a72c97193a57fd6f9a3593a36e432",
  "trust_label": "independently verified: zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-08-04",
  "last_validated": "2026-08-04",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 84,
  "source_url": "https://ainumbers.co/chaingraph/art-546-dtcc-ca-iso20022-validator.html",
  "generated_at": "2026-08-15T11:12:17.704Z"
}