Another hn post today lead me down a rabbit hole reading about the netflix production pipeline and i stumbled across the linked video explaining data management, besides explaining fairly cross-industry standard backup strategy it mentioned using chain of custody and mhl signature files to track file signatures to detect corruption and untracked file alteration. I have never heard about this standard before and it seems immensely useful to me, especially when working with filesystems without Bit Rot protection. (also see
https://github.com/ascmitc/mhl as the only open source tool i found)