The term proportional counter is identified in base64 scheme by the sequence cHJvcG9ydGlvbmFsIGNvdW50ZXI=, while the MD5 signature is equal to b7fa75743dae5d148040651bb7c53a89. The ASCII encoding of proportional counter in hexadecimal notation is 70726f706f7274696f6e616c20636f756e746572.