The term alkaline-earth metal is identified in base64 scheme by the sequence YWxrYWxpbmUtZWFydGggbWV0YWw=, while the MD5 signature is equal to ae253c9d9ec3fe6a8e4b6313ce72f3fe. The ASCII encoding of alkaline-earth metal in hexadecimal notation is 616c6b616c696e652d6561727468206d6574616c.