That has the issue that the merkle root hash is not the same as the file hash, so how do you then do discovery? (I want this file hash has to be resolved to a merkle root then I also have to download the whole thing before I can verify that that is indeed the file I wanted)

*technically* there’s no reason you couldn’t build BitTorrent on top of blossom, after all .torrent files are files and parts of files are also files 😉