Public verification page for a client_id, resolved in the live client registry. States: LIVE (the registration passes the sign-in policy, so a sign-in can complete; the only state shown with a ✓, listing its registered addresses), LISTED (registered, cannot complete a sign-in), SUSPENDED (its status refuses sign-in); 404 when Obelisk Gate holds no registration for it. Optional ?seen=<origin> (the card appends it): for a LIVE registration the page states whether that exact origin is one of its registered addresses, and says the link carried it, never that the seal was shown there. A LIVE page also lists what Obelisk Gate measured about the registration (callback policy, client authentication, registered callbacks; 30-day passkey and DPoP shares only when the server enables them), each with when it was measured or why it was not, and gives the site no rating.