Advances in Real-Time Reconciliation and Data Integrity Assurance for Institutional Digital Asset Portfolios
Keywords:
digital asset operations; real-time reconciliation; data integrity; tokenized funds; proof of reserves; oracles; continuous assurance; MiCA; ASU 2023-08; Basel cryptoasset standard; custodyAbstract
Purpose. Recent developments moved digital assets into the regulated operating model of asset managers, custodians and banks. Spot bitcoin exchange-traded products were approved in the United States, large managers issued tokenized fund shares on public blockchains, the European Union's Markets in Crypto-Assets Regulation (MiCA) entered into application, and the Basel Committee finalized its cryptoasset disclosure framework. These changes exposed a weakness in reconciliation and data integrity practices inherited from traditional finance, which assume batch processing, a single authoritative ledger and end-of-day finality. This paper examines how these developments changed reconciliation requirements and what advances emerged to meet them.
Design and methodology. The study is a structured narrative review combining 34 regulatory, standard-setter, market infrastructure and industry sources with 218 related and semi-related academic studies, all published to date. The academic corpus was screened from a consolidated list of 1,056 records and coded into ten themes, and the findings were synthesized into a conceptual model.
Findings. Four groups of advances stand out: authoritative reference data published on-chain by accountable providers; tokenized fund structures that require three-way and four-way agreement across chains, registers and custodians; cryptographic attestation such as zero-knowledge proof of reserves; and AI-assisted structuring of unstructured data validated through model consensus. Together they shift integrity assurance upstream, toward the point of data creation, and outward, toward third-party verifiability.
Contribution. The paper proposes a six-layer reconciliation architecture linked to five integrity properties (accuracy, completeness, timeliness, provenance and verifiability), states five propositions for testing, and sets out implications for practitioners and regulators, the study's limitations and an agenda for future research. The central argument is that these developments shifted the reconciliation question from "do our records agree at the close?" to "can we prove, continuously and to a third party, that our records agree with the chain?"
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