The term old-maid's bonnet is identified in base64 scheme by the sequence b2xkLW1haWQncyBib25uZXQ=, while the MD5 signature is equal to f9c281b731a612e59aa2e3f2fd2b410a. The ASCII encoding of old-maid's bonnet in hexadecimal notation is 6f6c642d6d616964277320626f6e6e6574.