The term isthmus of darien is identified in base64 scheme by the sequence aXN0aG11cyBvZiBkYXJpZW4=, while the MD5 signature is equal to 6f042c565d208b0a304166951ffa492b. The ASCII encoding of isthmus of darien in hexadecimal notation is 697374686d7573206f662064617269656e.