The term standard deviation is identified in base64 scheme by the sequence c3RhbmRhcmQgZGV2aWF0aW9u, while the MD5 signature is equal to 70122e6380205ddb985968a5c75d5d66. The ASCII encoding of standard deviation in hexadecimal notation is 7374616e6461726420646576696174696f6e.