Prove exactly who authored every claim, barrier, and hazard in your safety case — and prove the record of it hasn't been altered since.
Every entry in the audit log is cryptographically chained to the one before it — the same principle a blockchain uses, with no network required. Hand-edit, delete, or reorder any past entry and every hash after that point stops matching, which a one-click verification catches immediately. It's a specific, checkable property: not "we keep a log file," but "we can prove the log file hasn't been altered."
When relying on AI to accelerate engineering, regulators need to know what was machine-generated and what was verified by a human. Every piece of AI-drafted text in SAFOPS is tagged in the underlying data structure — by field, not just by record — until formally reviewed and signed off by a qualified engineer.
Every change to hazard data is versioned with who made it, when, and — for AI-assisted fields — what prompt version drafted it. Export the full, verifiable trail for ONR, HSE, or internal compliance reviews.