BlueHomer
Tamper-evident audit log
A tamper-evident audit log is append-only and hash-chained, so any alteration or deletion breaks the chain and can be detected independently of the system that wrote it.
Definition
A tamper-evident audit log is an append-only record in which each entry incorporates a cryptographic hash of the previous one, forming a chain. Altering or deleting any entry breaks the chain, and the break can be detected independently of the system that produced the records.
Why it matters
- An ordinary log proves what a system chose to report; a hash-chained log makes silent revision detectable.
- Auditors and regulators increasingly ask for integrity that does not depend on trusting the vendor.
- For AI actions it is the only practical way to reconstruct what an agent did and on whose authority.
How BlueHomer implements it
BlueHomer’s TrustOps captures important actions in an append-only, hash-chained audit trail whose integrity can be independently verified, alongside approval records, recorded break-glass access and exportable compliance evidence.