{"extension":"offer-receipt","formats":["eip712"],"payloadVersion":1,"domains":{"offer":{"name":"x402 offer","version":"1","chainId":1},"receipt":{"name":"x402 receipt","version":"1","chainId":1}},"types":{"Offer":[{"name":"version","type":"uint256"},{"name":"resourceUrl","type":"string"},{"name":"scheme","type":"string"},{"name":"network","type":"string"},{"name":"asset","type":"string"},{"name":"payTo","type":"string"},{"name":"amount","type":"string"},{"name":"validUntil","type":"uint256"}],"Receipt":[{"name":"version","type":"uint256"},{"name":"network","type":"string"},{"name":"resourceUrl","type":"string"},{"name":"payer","type":"string"},{"name":"issuedAt","type":"uint256"},{"name":"transaction","type":"string"}]},"signer":"0xF58f57c8a687A4b3FA42789328538C80AA1ffe09","signerAuthorization":{"method":"did:web","did":"did:web:pay.neuronto.com","document":"https://pay.neuronto.com/.well-known/did.json"},"verify":"https://pay.neuronto.com/offer-receipt/verify","notes":["The EIP-712 chainId is the constant 1 the extension mandates; the payment network travels in the payload.","types and primaryType are normative and are not transmitted; both sides take them from the specification.","A receipt is returned on success only and states that payment arrived and the service was delivered.","The signing key is dedicated: it is neither the payTo address nor the settlement signer."]}