I’m not super familiar with it but basically that would mean each code base would be an immutable chain, and all edits get appended? Seems like that would be very compatible with torrent seeding, just need to handle the branches. A branching blockchain, is that a block tree?
I'm being a little silly. Blockchain stuff wouldn't work great for hosting git on for a number of reasons. You might be onto something with that idea about integrating it with gir and torrents, though. I was thinking of using it as an external way to verify the repo is the real thing and hasn't been tampered with but your idea may be a better version of that.