{"issuer":"https://x402.clashofcoins.com","version":"1","keys":[{"kty":"OKP","crv":"Ed25519","kid":"clashofcoins-ed25519-1","alg":"EdDSA","use":"sig","x":"5z7D32lErEIeYLOpNpC1iCk56D7FOl0d2mhEWjQC25A","nbf":1778710758,"exp":1810246818}],"signature_algorithms":["ed25519"],"key_lookup":"https://x402.clashofcoins.com/.well-known/http-message-signatures-directory","key_source":"discovery-placeholder","notes":"Placeholder discovery key. Set HTTP_MESSAGE_SIGNATURES_PUBLIC_JWK to publish a production verification key."}