Siemens Mobile HMI program signature KTP900

I am using TIA Portal V14 to program a Siemens Mobile HMI (KTP900 Mobile).

I would like to pull up a program 'signature' from the HMI that would allow me to verify that the code in the HMI is the correct version.  This would help prevent an accidental overwrite of old code, resulting in a single Mobile HMI that has differing code from several others that are also in use.

The closest comparison would be a Safety Signature from a Safety PLC.  However, I just want to use a file checksum or similar variable that I can put on my screen.

Any ideas?  I appreciate it.