Files and Pins recover after crash?

Seeing this conversation about copying “the pin file”, since the computer crashed while the daemon was running, it’s possible the pin file got corrupted?

Where on disk (where in the “data” folder) is the root pin file, that I could back it up and be able to at least restore from a backup in this sort of situation?

I’ve stopped my node for now, given that it’s possible that the data is all there, just “unpinned”, and if the node keeps running it may eventually garbage-collect it?