{"spec":"https://datahedge.app/constitutional","algorithm":"Ed25519","public_key":"fmW7Rh5MnJyrjvdot9yk-Bv8BgTO-yMnmex0pKiLz6M","public_key_encoding":"base64url","rotation_policy":"Service key may rotate; historical receipts always carry the key that signed them. Verifiers should check the receipt's service_attestation.public_key, not blindly trust this endpoint.","last_updated":"2026-06-15T17:09:43.897Z"}