Home Assistant Installation ID

Hi to all, i’ve developed an integration and my cloud receive the Rest call from each HA installation around the world.
How can i know wich HA installation call me, can i read from my integration a unique ID of HA installation?
For this first release i can read the Integration ID (the entry_id in ConfigEntry ) but if you delete the integration and add again this ID change.

thanx
Emiliano

FYI (for your infos)
during integration develop, in the code you can get unique ID of HA installation with this command:

hass.data[‘core.uuid’]

enjoy
E#

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