verify Audit Integrity
Verify the integrity of the persistent audit trail.
Checks that the hash chain is unbroken and all event hashes are valid. For high-security deployments with signed entries, also verifies signatures.
Return
Verification result indicating chain validity or location of break.
Threading: Main-safe. Database IO dispatched internally.
Parameters
from Ts
Optional start timestamp (inclusive).
to Ts
Optional end timestamp (inclusive).