The term isthmus of panama is identified in base64 scheme by the sequence aXN0aG11cyBvZiBwYW5hbWE=, while the MD5 signature is equal to 5b5234b23a155618a8b10c92d55df885. The ASCII encoding of isthmus of panama in hexadecimal notation is 697374686d7573206f662070616e616d61.