@trwnh @OliviaVespera Why do you feel that the 7th & 8th cases are not "valid"?"@type":"Banana""@type":["Banana"]...At the following, "type" is set as an alias for "@type":https://www.w3.org/ns/activitystreams.jsonldBut, AFAICT, in JSON-LD creating an alias (such as "type") does not make the original form (such as "@type") invalid.Are you claiming the 7th & 8th form are invalid JSON-LD?Or, are you claiming the 7th & 8th form are valid JSON-LD, but invalid ActivityPub?Or, something else?