The term decimal numeration system is identified in base64 scheme by the sequence ZGVjaW1hbCBudW1lcmF0aW9uIHN5c3RlbQ==, while the MD5 signature is equal to 80dd887a2f7b91d1f622f5c59564e84c. The ASCII encoding of decimal numeration system in hexadecimal notation is 646563696d616c206e756d65726174696f6e2073797374656d.