Audit Trail

Every cheque-processing event and every configuration change, append-only and hash-chained. This screen has no edit affordances anywhere — for anyone — because a record you can amend is not evidence.

Append-only · SHA-256 chained
Read-only for every role, including administrators. Records cannot be edited, deleted or reordered; each carries its own hash and the hash of the record before it, so a removed or altered entry breaks the chain visibly.
chain head ← … ← 00000000 (genesis)