The term proterozoic aeon is identified in base64 scheme by the sequence cHJvdGVyb3pvaWMgYWVvbg==, while the MD5 signature is equal to 05140de935d18501f848892f024045ec. The ASCII encoding of proterozoic aeon in hexadecimal notation is 70726f7465726f7a6f69632061656f6e.