DLT Books and Records Financial Institution
The use of distributed ledger technology as books and records infrastructure for financial institutions, subject to the same substantive standards as traditional recordkeeping systems.
Definition
DLT books and records refers to the use of distributed ledger technology (DLT) — including permissioned blockchains and tokenization platforms — as the authoritative record of financial transactions, positions, and ownership for regulated financial institutions. Where a financial institution's books and records obligations are met through a DLT system rather than a traditional database, the substantive requirements are identical: records must be accurate, accessible, tamper-evident, and retainable for the required periods.
The BCBS cryptoasset capital standard (SCO60), with an effective date of January 2026, establishes the prudential treatment for banks' cryptoasset exposures. Under SCO60, tokenized traditional assets — Group 1a assets — are generally treated like their traditional counterparts for capital purposes, provided they satisfy classification conditions including legal equivalence. This means that for Group 1a assets held on permissioned networks by financial institutions with the necessary legal and governance controls, the DLT infrastructure itself does not generate additional capital charges compared to holding the same asset in traditional book-entry form. The technology is capital-neutral for qualifying assets. What matters is the legal substance of what is recorded and the governance of the infrastructure on which it sits.
The GFMA's August 2025 report, "The Impact of DLT in Capital Markets: Ready for Adoption, Time to Act," provides the most comprehensive industry analysis of DLT books and records implementation models for securities markets. It distinguishes two implementation approaches: using DLT as the internal books and records system for existing instruments, and tokenization of the instruments themselves. Both approaches require the same regulatory record standards regardless of the technology used.
Parallel regulatory validation has come from multiple directions across global securities markets. The EU's DLT Pilot Regime established a framework for market participants including CSDs and trading venues to operate DLT-based market infrastructure under modified rules, with Euroclear and Deutsche Börse's D7 platform among live implementations. SEC and FINRA guidance has confirmed that DLT records satisfying the substantive requirements of Rules 17a-3 and 17a-4 are acceptable regardless of the medium used.
How it works
The fundamental principle governing DLT books and records is that regulatory requirements follow legal substance, not technological form. A tokenized bond on a permissioned blockchain representing the same legal claim as a traditional DTCC book entry can be recorded in the institution's books under the same standards — provided the legal framework governing the token is equivalent to that governing the traditional instrument.
Capital neutrality under SCO60 is most readily achieved for Group 1b assets — tokenized traditional assets on permissioned networks — where the infrastructure operator can provide the necessary assurances regarding settlement finality and legal recourse. For Group 2 cryptoassets, the capital treatment is materially different and in many cases punitive, reflecting the greater legal and market risk uncertainty. This distinction matters for financial institutions building DLT recordkeeping infrastructure: the capital treatment depends on what is being recorded, not just how.
What DLT books and records must satisfy to meet the same standard as traditional recordkeeping for securities markets participants:
- An immutable ledger of transactions functioning as an append-only audit trail, equivalent to the non-rewritable requirement for traditional records
- Human-readable records capturing required regulatory fields — counterparty identifiers, account numbers, trade economics, compliance flags — not just cryptographic hashes or transaction data
- Smart contract logic that is reviewed, documented, and version-controlled as part of the firm's supervisory procedures
- Rule 17a-4 compliant WORM storage for records subject to non-rewritable retention requirements
- Address attribution records linking on-chain wallet addresses to regulatory account identifiers
What DLT books and records does not automatically provide:
- Legal enforceability: the legal nature of the record depends on jurisdiction and instrument structure, not the DLT platform itself
- Regulatory completeness: an immutable on-chain ledger is not a complete 17a-3 record without associated account-level metadata
- Capital neutrality by default: SCO60 Group 1a treatment requires legal equivalence documentation and infrastructure governance assurances that must be established and maintained
- Supervisory documentation: written supervisory procedures must govern how the DLT system is operated, monitored, and audited — the technology does not substitute for the procedures
The supervisory documentation requirement deserves particular attention. Regulators examining DLT books and records systems look not only at the records themselves but at the documented procedures governing how those records are created, maintained, and produced. A firm using DLT infrastructure without written supervisory procedures that specifically address the DLT environment will fail examination regardless of the technical quality of the records.
In Devancore™
Devancore's recordkeeping architecture is built to satisfy legal equivalence standards across both traditional and DLT-settled instruments. Every transaction state change is captured in an append-only, source-tagged audit trail — recording what changed, what caused it, and when — providing the tamper-evident immutable ledger (functioning as a non-rewritable audit trail in regulatory terms) that examination teams require from a compliant books and records system.
Devancore's instrument taxonomy explicitly flags the Basel Group classification for each position, automatically alerting risk teams if a DLT-based position lacks the legal documentation required to maintain capital-neutral treatment under SCO60. The legal nature of each position is preserved in the instrument taxonomy and jurisdiction classification, not inferred from the settlement technology — meaning the system can demonstrate legal equivalence to examiners without requiring manual legal review of every position.
For DLT-settled instruments, Devancore records the specific blockchain infrastructure and the finality characteristics of the settlement rail alongside the trade record. This enables the firm to demonstrate that DLT-based records meet the same substantive standards as traditional records. The WORM Audit Vault enforces non-rewritable, non-erasable retention for all records subject to Rule 17a-4, covering both traditional and digital asset transactions under a single retention framework. Written supervisory procedures governing DLT recordkeeping are maintained and version-controlled within the platform, satisfying the supervisory documentation requirement that examination teams verify alongside the records themselves.