@aral@mastodon.ar.al @evan@cosocial.ca also, in the specific case of #GazaVerified, since the users already have an account on the website, how about creating a form for them to allow them verify other handles? (Of course, with extra human vetting at least at the beginning to prevent abuse)
Then insert those handles in the db and display them with a rel="me" on the website.
It's still a workaround, and I'd still like the idea of a proper protocol solution for peer-to-peer verification, but in the meantime it could work.