The term menstrual blood is identified in base64 scheme by the sequence bWVuc3RydWFsIGJsb29k, while the MD5 signature is equal to 7874e41d69964e8e1a1f57c7c217aaae. The ASCII encoding of menstrual blood in hexadecimal notation is 6d656e73747275616c20626c6f6f64.