OpenChainGraph Suite · CONTRACT A3 · arch #5

NACHA ACH Rules Compliance

ACH/NACHA message validation > NACHA ACH rule compliance checking — composite NACHA ACH rules compliance mandate.

OpenChainGraph · 2 Steps compliance mandate Hash-Anchored §4 chain_depth:2 Client-Side · Zero PII
Chain Topology — Ach Nacha Validator → Nacha Ach Rule Compliance Checker
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Buyer: ACH Operations Officer / Payments Compliance Lead at US bank or ODFI
Forcing function: NACHA ACH risk framework updates 2024; FedNow interoperability requirements; same-day ACH expansion
Chain Stages · 2 Steps
1 ROOT · D0 catalog
Ach Nacha Validator 07-ach-nacha-validator
ach_message_validation and format_errors feed Stage 2 NACHA rule compliance check
↓
2 TERMINAL · D2 catalog
Nacha Ach Rule Compliance Checker 224-nacha-ach-rule-compliance-checker
rule_compliance_status and violation_flags — final NACHA ACH compliance mandate
▶ Run this chain (live) browser · real execution · composite §4 hash
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition — no new hash is minted. Available after hash computation.