i know this thread has been dead for a while but i'd like to revive it. it would be a game changer if resilio sync incorporated a checksumming feature. right now the only way to ensure bit rot doesn't propagate is to have every device connected running a file system with built in redundancy (ZFS, BTRFS, ReFS). or some third party checksumming tool. while this is tolerable on personal machines that you oversee, its much more difficult to control on family, friends, and colleagues devices. even if we do all the heavy lifting of setting up a resilient file system it can all be undone a corrupted file on a peer.
this could be solved by an optional checksum option ("file integrity check") in resilio sync. so if a file is corrupted it can get fixed by a peer with the correct copy. a checksum file would be very small in comparison to the actual data,