The term ostwald's theory of indicators is identified in base64 scheme by the sequence b3N0d2FsZCdzIHRoZW9yeSBvZiBpbmRpY2F0b3Jz, while the MD5 signature is equal to b293f28333b7903ccd033c0b6791dbbe. The ASCII encoding of ostwald's theory of indicators in hexadecimal notation is 6f737477616c642773207468656f7279206f6620696e64696361746f7273.