The term fenestra ovalis is identified in base64 scheme by the sequence ZmVuZXN0cmEgb3ZhbGlz, while the MD5 signature is equal to 94e88408f171b84bbe9f92bfcb27f7cf. The ASCII encoding of fenestra ovalis in hexadecimal notation is 66656e6573747261206f76616c6973.