{"key_id":"ed25519:531e24032a79046a425a3cf0","algorithm":"Ed25519","public_key_encoding":"raw-base64url","public_key":"h4QzXeHydPPWRNdAaJw4eONUmhOyoakEnYN2XQzeKKM","purpose":"PolarCat physical-task completion receipts","receipt_schema":"polarcat-completion-receipt/1","url":"https://hands.polarcat.org/v1/receipt-key"}