HIPAA’s Security Rule at 45 CFR 164.312(c)(1) requires covered entities to implement technical security measures that guard against unauthorized access to electronic Protected Health Information (ePHI). More specifically, 45 CFR 164.312(c)(2) requires covered entities to implement electronic mechanisms to corroborate that ePHI has not been altered or destroyed in an unauthorized manner.

This integrity standard applies to ePHI in storage and in transit. It is not satisfied by access logs alone, because access logs are maintained by the organization being audited and can be altered by insiders. An independent integrity mechanism is required. SHA-256 blockchain anchoring satisfies 45 CFR 164.312(c)(2) because it creates a record of the document’s exact contents at a specific moment on a ledger no single organization controls.

Healthcare providers, health plans, healthcare clearinghouses, and their business associates who handle ePHI are all covered. This includes hospitals, physician practices, dental offices, insurance companies, and the technology vendors that handle their data.

The Sarbanes-Oxley Act was enacted in response to financial reporting fraud. Its document retention requirements reflect a specific concern: that records might be altered or destroyed to conceal misconduct. Section 802 makes it a criminal offense to knowingly alter, destroy, mutilate, conceal, or falsify any record with intent to impede a federal investigation or obstruct justice.

For public companies, SOX requires that financial records be maintained for seven years in a manner that prevents alteration. The SEC’s rules implementing SOX require that electronic records be preserved in a non-rewriteable, non-erasable format, or in a system that maintains a complete audit trail of all modifications. Blockchain anchoring satisfies both requirements because the on-chain hash cannot be altered retroactively and the transaction record creates a permanent, time-stamped audit trail.

Smaller companies that work with or aspire to work with public companies increasingly face SOX-aligned documentation requirements as a condition of business relationships, even when they are not themselves SOX-obligated.

The Federal Acquisition Regulation governs the purchase of goods and services by the US federal government. FAR 4.703 requires contractors to retain records related to government contracts for three years after final payment, with longer retention periods for specific record types. FAR 52.215-2 requires that records be available for examination by authorized government representatives.

More critically, FAR 52.203-13 requires contractors to implement internal controls that detect and prevent violations of federal law, including the False Claims Act. A contractor who submits an altered document in support of a claim under a government contract faces liability under the False Claims Act, which allows for treble damages plus civil penalties per false claim. Tamper-evident records provide a defense: a contractor whose records carry blockchain-anchored integrity proof can demonstrate that the documents are unchanged from their original form.

Any business that holds or seeks federal contracts, including small businesses under SBA programs, should treat FAR-compliant record retention as a foundational requirement.

21 CFR Part 11 is the FDA’s regulation governing electronic records and electronic signatures in FDA-regulated industries: pharmaceutical, medical device, biotechnology, and food manufacturers. It requires that electronic records be trustworthy, reliable, and generally equivalent to paper records.

Specifically, 21 CFR 11.10(e) requires that computer systems protect electronic records to enable their accurate and ready retrieval throughout the records retention period. 21 CFR 11.10(k) requires audit trails that independently record the date and time of operator entries and actions that create, modify, or delete electronic records. These audit trails must be computer-generated, not operator-generated, and must be protected against modification.

Blockchain anchoring satisfies 21 CFR 11.10(k) because it creates a computer-generated, independently verifiable audit trail on a ledger that no operator can modify. The on-chain hash is the independent record that the regulation requires.