The term mercantile system is identified in base64 scheme by the sequence bWVyY2FudGlsZSBzeXN0ZW0=, while the MD5 signature is equal to 4ff82638414b7992b061cfa10e26d7e5. The ASCII encoding of mercantile system in hexadecimal notation is 6d657263616e74696c652073797374656d.