The term poikilothermic is identified in base64 scheme by the sequence cG9pa2lsb3RoZXJtaWM=, while the MD5 signature is equal to d2c9a5097b7db664b3dd5e5ac2e3ac8e. The ASCII encoding of poikilothermic in hexadecimal notation is 706f696b696c6f746865726d6963.