The term aurora borealis is identified in base64 scheme by the sequence YXVyb3JhIGJvcmVhbGlz, while the MD5 signature is equal to b4bd90ed01fbd1b1b7a0f45b812b70cb. The ASCII encoding of aurora borealis in hexadecimal notation is 6175726f726120626f7265616c6973.