Actually, zfs-on-linux is doing pretty well. It's not production ready yet, of course. As for HTTP, I agree with you entirely! There is actually a standard tha

Actually, zfs-on-linux is doing pretty well. It's not production ready yet, of course. As for HTTP, I agree with you entirely! There is actually a standard that lets you put a hash (SHA-1 or SHA-256 or something) on an http anchor link, and the browser will verify it when the download finishes. It hasn't really gained very wide adoption though. Personally, I think something akin to Bittorrent is a better solution, since it doesn't have to redownload the entire file when it detects an error. It's ironic that our videos often have better data integrity than the graphics driver installer that I just downloaded, or the browser that I downloaded yesterday.