{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://pointcast.xyz/schemas/x402-keys.schema.json","title":"PointCast x402 receipt keys","type":"object","required":["issuer","keys_endpoint","keys"],"properties":{"issuer":{"const":"pointcast.xyz"},"keys_endpoint":{"type":"string","format":"uri"},"keys":{"type":"array","items":{"type":"object","required":["kty","crv","alg","kid","x"],"properties":{"kty":{"const":"OKP"},"crv":{"const":"Ed25519"},"alg":{"const":"EdDSA"},"kid":{"type":"string"},"x":{"type":"string"}}}}}}