Ever since I learned of bittorrent V2, I've been hoping for some per-file index to show up online. I'd love to be able to tag most or all of the bulk media file

Ever since I learned of bittorrent V2, I've been hoping for some per-file index to show up online. I'd love to be able to tag most or all of the bulk media files on my drives with how many copies exist in bittorrent swarms at any time. That way, I could more easily pick out big files for deletion knowing I could easily get another identical copy back later. I tried doing something like this in the past using ipfs, but I wasn't very successful and didn't find any duplicates.