The term single-barrelled is identified in base64 scheme by the sequence c2luZ2xlLWJhcnJlbGxlZA==, while the MD5 signature is equal to 584fb6878c978e13ad9f1011449bfbcd. The ASCII encoding of single-barrelled in hexadecimal notation is 73696e676c652d62617272656c6c6564.