The term caterpillar tread is identified in base64 scheme by the sequence Y2F0ZXJwaWxsYXIgdHJlYWQ=, while the MD5 signature is equal to dee1dc587c4bc61be6cdcf1e2c19a7ac. The ASCII encoding of caterpillar tread in hexadecimal notation is 636174657270696c6c6172207472656164.