One total and a day-end ledger
Gold and currency are converted and written down
A move in the rate looks like a cash difference and hides the real one.
A correction is made by deleting
The record that does not add up is edited, and why it changed stays with nobody.
Who opened it and when is unclear
The start of the cash day and its count are not on record.
There is a total, but not how much of which asset.