Go on https://notabot.net
Discussion
Than search for npub1v4zrpw7xufxqlnmcqv04gwggzq4zeteen2h8ml65wv7jz3h2vwcs4vpd2p user and verify him back.
Ok I did it back.
It doesn’t work if you do each other. It works in triangles. One does one, that one does another, the other does the first one. And so on