Off of what servers? Fediverse data is already archived across thousands of servers through federation.
I'm not sure if this is exactly what you're looking for, OP, but I do know of https://activitypods.org/.
Its is commonly done with S3 compatible storage, and projects like Garage allow to do so in a distributed way.
Neither Bittorrent or IPFS seem particularly well suited for this.
PeerTube is using Webtorrent to distribute the load to all viewers that currently watch the video. And if you host a PeerTube instance you can manually mirror videos on your instance that are hosted on other PeerTube instances.
What do you mean by fediverse data?
What problem are you trying to solve that isn't solved by BitTorrent and IPFS?
The nice thing about the fediverse is that it's largely a concept with a few common protocols to make interoperability easier, you can solve pretty much any problem in line with the fediverse, but you do actually need a problem to solve.
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, Mbin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration)