The term philosophers' stone is identified in base64 scheme by the sequence cGhpbG9zb3BoZXJzJyBzdG9uZQ==, while the MD5 signature is equal to 0016062243b6d2264330169156b7930f. The ASCII encoding of philosophers' stone in hexadecimal notation is 7068696c6f736f7068657273272073746f6e65.