So an idea that has been floating around for some time is that you can verify that a link a person puts in their profile belongs to them, by checking if the linked site links back to the profile (with a special attribute that signifies intention), and that it can be used to, indirectly, verify that a profile is "real"
I wonder what the UX for that would look like. I doubt this can or even should be something displayed in-stream like the Twitter verified badge, because with custom emojis, the display name area is absolutely untrustworthy. More than that, the presence of a verified link is meaningless unless you trust the linked site (such as someone's official personal homepage)
So it would probably be something only displayed next to those links.
Generalistic and moderated instance.