{"machine":"notarize","family":"PROVE","slot":"P1","title":"Notarize content","how_to_call":"POST https://innernetcorp.com/machines/notarize with Content-Type: application/json","price_usd":"$0.003","currencies":["USDC"],"input_example":{"data":"shipping-confirmation","note":"order-123"},"input_schema":{"type":"object","properties":{"data":{},"hash":{"type":"string"},"note":{"type":"string"}},"additionalProperties":false},"summary":"Create an Ed25519-signed timestamped receipt for content or an existing SHA-256 hash. Verification stays free and can also be done offline.","catalog":"/catalog"}