Is the fax time stamp of the sender machine or the receiver?

Question

Is the fax time stamp of the sender machine or the receiver?

Answer 1

End of Transmission.

Communication terminal device with timestamp function .

By using timestamp technology, a communication terminal device 1 with a timestamp function can officially certify transmission completion time. When a start key of a digital Multi Function Peripheral (MFP) is pressed, and e-document scan is instructed, scanned image data is stored as an e-document along with a timestamp received from a Time Stamping Authority (TSA). When facsimile transmission is carried out, and "log e-document storing transmission" is selected, a hash value of data composed of communication log data and image data transmitted by facsimile is transmitted to the TSA, and log file data and a timestamp are stored as an e-document.

European Patent EP1841128