The ActivityPub protocol is a decentralized social networking protocol
based upon the [ActivityStreams] 2.0 data format.
It provides a client to server API for creating, updating and deleting
content, as well as a federated server to server API for delivering
notifications and content.
Not really a question, is it?
Maybe op thinks this is Jeopardy.
At this point I feel like people are actively trying how far they can get from this community‘s intended kind of post without getting removed.