is there an system ID that is unique to each instance of DHIS2, but remains constant when the system gets upgraded?
I checked the SystemID one can get from the API via https://play.dhis2.org/2.35.1/api/33/configuration/systemId - however, this ID is the same for the different demo instances, i.e. https://play.dhis2.org/2.34.3/api/33/configuration/systemId returns the same ID.
Background: For an app we want to store settings with an external service. I am looking for a way to ensure that requests can always be assigned to the correct DHIS2 instance - and the systemId seemed to be the right ID - until I realized that it does not change the different demo systems.
On the flip-side: if such an ID exists, does it stay constant if the system is upgraded?
Thanks a lot!