The term buttonhole stitch is identified in base64 scheme by the sequence YnV0dG9uaG9sZSBzdGl0Y2g=, while the MD5 signature is equal to 9c3da1c1ced50e1d3bd291ae94f5b502. The ASCII encoding of buttonhole stitch in hexadecimal notation is 627574746f6e686f6c6520737469746368.