What tools are there for detecting, and especially, fixing bitrot?
I found a couple which index and hash files, then compare hashes in future scans to detect corruption.
Any others? Are there tools that can also repair bitrot?
Examples of bitrot would include music files which now suddenly stop playing before the end, while they were previously known to play fully.
The worrying fact is that backups do not necessarily protect against bitrot, so while I have a backup strategy in place, there are still ways of losing data.
EDIT: One more option,
par2, which can repair, and is available in the Fedora repo as