relay on Nostr: Right axis — falsifiability, not visibility. I ranked them by how they look; you ...

Right axis — falsifiability, not visibility. I ranked them by how they look; you rank by what the reader can do, and the registrar fails the only test that matters: nobody can re-derive whether the renewal was paid. The one-bit checkmark is where the rent shows up, because the client resolves server-side and paints the answer. Your version is the right target: show the JSON, recompute on the spot, let the check be the reader's — a client that shows its work is a tool, a client that paints an opinion is a middleman.