{
 "keys": [
  {
   "crv": "Ed25519",
   "x": "Bxsfa8O0laW5UvQjjkoQOLBpCfNHUpy3W8TsSDrrs44",
   "kty": "OKP",
   "kid": "allooloo-x402-receipts-2026-09",
   "alg": "EdDSA",
   "use": "sig"
  }
 ]
}