Are you familiar with or have you used MacPAR deLuxe?
For a long time, it was a go-to tool for creating and using PAR2 files, which can repair corrupted files using parity data. PAR2 files are primarily used on Usenet servers (newsgroups).
The problem is that the application was developed solely for Intel-based Macs and appears to have been abandoned since 2018. Furthermore, the announced removal of Rosetta 2 in a future version of macOS effectively rules out its use on Apple Silicon Macs.
PAR2Manager can help you solve this problem. Developed natively for Apple Silicon Macs (while remaining compatible with Intel Macs), this open-source application allows you to create, verify, and repair PAR2 file sets.
GitHub : https://github.com/chrisbasse/PAR2Manager