...I don't think it can be answered. You can modify the date and time on a file, so there's really no such thing as an audit trail for a file.
If the file had been input to the 'net a long time ago, then it might have been done in a batch process, as opposed to on an ad hoc
basis. In the old days of batch processing, there was usually a rigorous batch control record kept for all batch input data, with things like input document counts, data types, hash totals of any numeric (e.g., $ money) fields manually input (via data entry).
So the batch control record for an image capture/input process could
conceivably provide a decent audit trail.
You'd not be so likely to find things like that nowadays though, unless (say) it was Banking or Government/Defence data capture/input.