Unfortunately, it seems that ALAC format doesn't store any type of hash in the container. It means that ALAC format doesn't offer any way to detect corruption itself. You rely on AccurateRip or other methods to detect corruption. In other words, you need to compare the suspicious file against another sample to detect corruption and differences, because ALAC format cannot report corruption, assume that everything is fine.
Try to verify your music collection using CueTools. If you have only popular/mainstream albums, it is very likely that Accuraterip can help you.
Another suggestion: Use Multipar to create redundant data, useful to detect and _repair_ corruption, which could happen in the future. I run this .cmd file to create a .par2 file for each folder of my music collecion:
Code:
set path=[Absolute path to Multipar folder]
FOR /R %%g IN (.) DO psexec.exe -low par2j.exe c -rn100 -fo -rd1 -rf1 -sn2000 "%%g\%%~ng.par2" "%%g\*"