Hi @deadsuperhero, I doubt one can get standard results in the sense of #ActivityPub. It's too generic. Look what https://www.w3.org/TR/activitystreams-vocabulary/#dfn-note says; contrived informal examples. That's practically useless.
So it's either #ActivityPub and you have no idea what you get or it's a certain flavour which has no standard at all.
And having no easy to use schemas for json makes the problem even worse. A way out could be publicly usable compliance tests, but this drags since early on. I haven't seen open public compliance reports so far (other than what I do myself).