This brings to mind parity files on Usenet. Large archives would be uploaded split into smaller files and a number of parity files. You could then recreate the

This brings to mind parity files on Usenet. Large archives would be uploaded split into smaller files and a number of parity files. You could then recreate the original archive using any (for example) n-3 out of n files. https://en.wikipedia.org/wiki/Parchive https://en.wikipedia.org/wiki/Parchive