OpenChainGraph Suite · ART-490 · FATCA / CRS · Responsible Officer Certification

FATCA/CRS Submission Conformance Check

Evaluates a submission record set against a policy-supplied schema version and business-rule set: DocTypeIndic sequencing (the public OECD CRS/FATCA XML Schema v2.0 new/corrected/void enumeration), DocRefId uniqueness, CorrDocRefId referencing across corrected and voided records, mandatory-identifier structural checks, and your own rule set keyed by a published error code and element path. Emits a hash-anchored OpenChainGraph v0.4 artifact. Step 1 of the Responsible-Officer Certification Cycle, where findings against the submission route to a §27 review_required gate with the compliance officer as reviewer.

OECD CRS/FATCA XML Schema v2.0 IRS FATCA XML Schema Feeds ART-491 remediation closure

🔒 All checking runs locally in your browser. No data is transmitted. Do not enter real taxpayer or account-holder data — use synthetic or anonymised inputs only.

⚠ Not a schema validator competing on coverage — free FATCA/CRS XML validators already exist. Schema versions and error-code sets are pinned POLICY INPUTS you supply below, never hardcoded here. The claim is the sealed, offline-verifiable evidence chain from a submission finding through remediation (ART-491) to a named Responsible Officer signature, not better validation.

Submission

Submission ID

Certification period

Schema version (policy input — pin the exact schema you are validating against) Suppressed rule codes (F3 — comma-separated; a suppressed rule produces no finding at all) Mandatory element rules (JSON array: rule_code, element_path, applies_to "all" or a DocTypeIndic, description) Records (JSON array: doc_ref_id, corr_doc_ref_id, doc_type_indic, tin, birth_date "YYYY-MM-DD", address_street, address_city, address_country_code, element_values)

Findings

Execution Hash (SHA-256)

Feeds ART-491 RO Remediation Closure Tracker in the fatca-ro-certification-cycle chain — this node's findings become that node's notification set. Reuses the ART-428 decision-tree attestation-slot conventions for downstream determinations.

Ask your agent

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 `check_fatca_crs_submission_conformance`. Task: Evaluate a FATCA/CRS submission record set against a policy-supplied schema version and business-rule set: DocTypeIndic sequencing (the public OECD CRS/FATCA XML Schema v2.0 new/corrected/void enumeration), MessageRefId/DocRefId uniqueness, CorrDocRefId referencing across corrected and voided records, mandatory-identifier structural checks (TIN presence, BirthDate format, address completeness), and the caller's own mandatory_element_rules array keyed by a published error code and element path.
Call it with arguments: {"policy_parameters":{"submission_id":"SUB-2025-US-0001","schema_version":"OECD-CRS-XML-SCHEMA-v2.0","certification_period":"2025","suppressed_rule_codes":[],"mandatory_element_rules":[{"rule_code":"BR-ACCTNUM-001","element_path":"account_number","applies_to":"all","description":"AccountNumber element is required on every record (BR-ACCTNUM-001)."}],"records":[{"doc_ref_id":"US2025DOC0001","doc_type_indic":"OECD1","tin":"000000001","birth_date":"1980-01-15","address_street":"1 Synthetic Way","address_city":"Springfield","address_country_code":"US","element_values":{"account_number":"ACCT-0001"}},{"doc_ref_id":"US2025DOC0002","corr_doc_ref_id":"US2025DOC0001","doc_type_indic":"OECD2","tin":"000000002","birth_date":"1975-06-30","address_street":"2 Synthetic Way","address_city":"Springfield","address_country_code":"US","element_values":{"account_number":"ACCT-0002"}}]}}
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-490-fatca-crs-submission-check.html#p=v1.H4sIAAAAAAAA_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