@mauve have you looked at #libp2p's gossipsub?

I just started looking at it because MaidSafe are implementing support for it in #SafeNetwork and I'm wondering if it would be possible to implement support for #ActivityPub on top of #gossipsub.

It would be amazing if this potentially widely used library were a way to link Safe and other #p2p networks to the #fediverse 

FYI I posted about this on the Safe forum and put some references in the OP directly above: https://safenetforum.org/t/gossipsub-what-dat/38718/2?u=happybeing 

 @af7acbe6 ActivityPub can use a transport protocol other than HTTPS (if you read the spec in a certain way). I wrote this document which describes self-authenticating activities:

https://codeberg.org/fediverse/fep/src/branch/main/fep/ae97/fep-ae97.md

I think it's a good stating point for p2p-ActivityPub.