The term exothermic reaction is identified in base64 scheme by the sequence ZXhvdGhlcm1pYyByZWFjdGlvbg==, while the MD5 signature is equal to b941387e3b27d3ff5f387ae9603bedb7. The ASCII encoding of exothermic reaction in hexadecimal notation is 65786f746865726d6963207265616374696f6e.