This folder holds the **DBIS Rail** technical specification and operational rulebook for Chain 138 (DBIS Mainnet): bank-rail settlement and GRU mint orchestration using ISO-20022–anchored authorizations.
- **E2E White Paper (simple terms):** [E2E_WHITEPAPER_SIMPLE.md](E2E_WHITEPAPER_SIMPLE.md) — end-to-end flow, components, and controls in plain language.
- **Audit Readiness Results:** [DBIS_RAIL_AUDIT_READINESS_RESULTS_V1.md](DBIS_RAIL_AUDIT_READINESS_RESULTS_V1.md) — baseline checklist run: status per section, gaps (e.g. owner mint, rail contracts not deployed), and prioritized remediation.
- **Control Mapping:** [DBIS_RAIL_CONTROL_MAPPING_V1.md](DBIS_RAIL_CONTROL_MAPPING_V1.md) — control IDs mapped to checklist sections, Spec, Rulebook, and Threat Model for audit and SOC 2 / ISO 27001 alignment.
- **Completion Master:** [DBIS_RAIL_AND_PROJECT_COMPLETION_MASTER_V1.md](DBIS_RAIL_AND_PROJECT_COMPLETION_MASTER_V1.md) — current project and deployment status; full task list (required and optional) for DBIS Rail audit readiness and project completion.
- **Implementation coordination:** [IMPLEMENTATION_COORDINATION_WITH_TRANSCRIPT_540AE663.md](IMPLEMENTATION_COORDINATION_WITH_TRANSCRIPT_540AE663.md) — coordinate all implementations with transcript 540ae663 (PMM/DEX, tokens, GRU, cW*, deployments); maps Completion Master tasks to done/partial/open.
- **v1.5 Hash Canonicalization and Test Vectors:** [DBIS_RAIL_HASH_CANONICALIZATION_AND_TEST_VECTORS_V1_5.md](DBIS_RAIL_HASH_CANONICALIZATION_AND_TEST_VECTORS_V1_5.md) — LEB/LPA/ISO schemas, canonicalization rules, test vectors for auditor reproducibility.
- **Add-Ons code completion:** [DBIS_RAIL_ADDONS_CODE_COMPLETION_TASK_LIST.md](DBIS_RAIL_ADDONS_CODE_COMPLETION_TASK_LIST.md) — full task list to implement Spec v1 + v1.5 and achieve an operational system.