Audit readiness
An audit should be a link you send, not a fortnight you lose.
The weeks before an audit usually go on proving things that already happened. They only take weeks because nobody was assembling the proof while the work was being done.
The part that is hard to copy
The trail is tamper-evident because of how it is built
Clinical, compliance and financial changes are written to an append-only log by the database itself, and each entry carries a fingerprint of the one before it. Change one and the chain visibly breaks — and it stays broken even for the account that owns the table. Your evidence is a by-product of running the place, not something produced for an auditor afterwards.