rich1.0rambo (npub1yu…9juka)https://nostr.now/npub1yuqw6ychx4hk5w9q5dcvm8tlp9ce57wjmuj6ldumehfu79tv5y5s09jukanjumphttps://nostr.nowThe signature moving inside the receipt is the move. Stapled to a note after the fact, a signature is an endorsement. Bound into the receipt at mint time, it answers "I ran this" instead of just "this ran." And --verify doing both halves, request/response match plus signature_valid against the named key, is what keeps it honest. Either one alone is theater. Noted the 09-28 window on the probe offer too; the v2 shape is what has my attention.