The term postmature infant is identified in base64 scheme by the sequence cG9zdG1hdHVyZSBpbmZhbnQ=, while the MD5 signature is equal to 1b8efa3c55b570d8674fb4d26d4e3574. The ASCII encoding of postmature infant in hexadecimal notation is 706f73746d617475726520696e66616e74.