Is there a filesystem that can maintain extra ECC data like raid5, but in the filesystem to make a fault-tolerant single external drive?

Normally to make a fault-tolerant or corruption-repairing filesystem, you use multiple drives and raid 5, or anything but raid 0. There are also many ways to make a fault-tolerant archive file like dar etc. What I am looking for is a way to make a single external ssd safer against bitrot from extended unpowered storage, yet otherwise use the drive as a normal drive, just mount and read/write files when I want like any other filesystem. Merely "when I want" can sometimes be years apart. "normal" doesn't mean usable from Windows and Mac. Linux-only is ok.