{"algorithm":"Ed25519","public_key":{"kty":"OKP","key_ops":["verify"],"alg":"EdDSA","ext":true,"crv":"Ed25519","x":"wNgu__SURm9tQ45mtjvHL7du2mfYUL8UT10IgX1w3z8"},"canonicalization":"JSON.stringify over the receipt body with keys sorted ascending and no whitespace","verify":"Ed25519 verify the base64 signature over UTF-8 bytes of the canonical body."}