{
  "issuer": "402xAgent",
  "purpose": "ed25519 signatures on 402xAgent check receipts",
  "algorithm": "Ed25519 (EdDSA), signature base64url, 64 bytes",
  "signed_bytes": "RFC 8785 (JCS) canonical JSON of the receipt with only the signature field removed (kid is signed)",
  "verify": "npm x402-spotcheck >= 1.1.0: verifyReceipt(receipt); or see /docs#receipt-signatures",
  "keys": [
    {
      "kty": "OKP",
      "crv": "Ed25519",
      "alg": "EdDSA",
      "use": "sig",
      "kid": "402xagent-20261015-be7f1a32",
      "x": "Mg-pJzwWOqg5rsQwXjNa3b7VSvI9dkm_-Y0amZfkC34",
      "created": "2026-10-15"
    }
  ]
}