Deterministic dividend/rights/split entitlement math per record date for a single position, under the ISO 20022 corporate-action field set carried by DTCC Important Notice 23890-26's legacy corporate-actions message format decommission. entitlement = position_qty × ratio_or_rate, with rounding/proration rules per corporate-action type, all caller-supplied, no security-master lookup, no market-data fetch. This is entitlement math only; message-shape validation is a separate node, DTC CA ISO 20022 message validator (art-546), which chains into this node's input.
Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.
Run the AINumbers MCP tool `recompute_corporate_action_entitlement`. Task: Deterministic dividend/rights/split entitlement math per record date for a single position, under the ISO 20022 corporate-action event field set migrated by 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).
Call it with arguments: {"policy_parameters":{"corporate_action_type":"DVCA","position_qty":1200,"ratio_or_rate":0.42,"record_date":"2027-01-15","reference_id":"CA-OPAQUE-2027-0001"}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-547-corporate-action-entitlement-recompute.html#p=v1.H4sIAAAAAAAA_wGJAHb_eyJjb3Jwb3JhdGVfYWN0aW9uX3R5cGUiOiJEVkNBIiwicG9zaXRpb25fcXR5IjoxMjAwLCJyYXRpb19vcl9yYXRlIjowLjQyLCJyZWNvcmRfZGF0ZSI6IjIwMjctMDEtMTUiLCJyZWZlcmVuY2VfaWQiOiJDQS1PUEFRVUUtMjAyNy0wMDAxIn2bjODRiQAAAA