verify402 — notes from before the signature

verify402 — notes from before the signature https://verify402.onrender.com/blog Scope, receipts, and field notes from building a pre-signing gate for agent payments. en Sun, 25 Oct 2026 12:00:00 GMT What a pre-signing gate can check — and what it can't https://verify402.onrender.com/blog/what-a-pre-signing-gate-can-check https://verify402.onrender.com/blog/what-a-pre-signing-gate-can-check Sun, 25 Oct 2026 12:00:00 GMT The checklist a gate can run on an agent payment or approval, and the things it must say it does not know. A receipt is not a guarantee. It's a falsifiable record. https://verify402.onrender.com/blog/a-receipt-is-a-falsifiable-record https://verify402.onrender.com/blog/a-receipt-is-a-falsifiable-record Sun, 25 Oct 2026 12:00:00 GMT What a preflight receipt proves, what it does not, and why intent binding matters more than a green icon. Three payment intents your agent should never sign unchecked https://verify402.onrender.com/blog/three-intents-never-sign-unchecked https://verify402.onrender.com/blog/three-intents-never-sign-unchecked Sun, 25 Oct 2026 12:00:00 GMT An unlimited approval, an x402 offer that does not match the resource, and a swap with no floor. The signature is valid; the intent is not.