In a conversation with @humanetech, the connection between us and ActivityPub (AP)/the fediverse came up. Here is a brief statement on that:
Interpeer's vessel container format is suitable for arbitrary content sections. ActivityStreams (AS) Objects fit nicely into that concept. With Interpeer's wyrd, we can even offer modification capabilities beyond those AS offers.
Interpeer's upcoming hubur protocol (nothing to see yet) maps relatively well onto AP. Therefore, a bridge seems feasible.