>>107086799
The distinction is irrelevant. Your machine can get hit with a cosmic ray and flip a zero to a one and that's bitrot too. It's doesn't matter whether the cause is physical, software related, or due to physics, the end-result is the same. You're data is fucked and without a filesystem that checksums you have no way of knowing unless you manually inspect every single file.

This why archivists keep CRC files, etc, but with a filesystem that has checksums built-in you have no need for these files because it's already an integral part of the filesystem.