marius on Nostr: nprofile1q…s27xz I think the only reference in the aggregated ActivityX ...

nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqjs9drzr3lgn5d33vhxvdn50vwfku5qy4kjma97vknax3kzk5wetqes27xz (nprofile…27xz) I think the only reference in the aggregated ActivityX specifications is that attributedTo has "Range: Object | Link".

Which one do you consider "acct:..." would qualify as?

My opinion is none. Webfinger resources are not a compatible method of directly referencing objects in the fediverse.