Infection status is not self-reported without some kind of authorization from the authority that provides the actual app used for tracing - which is probably so

Infection status is not self-reported without some kind of authorization from the authority that provides the actual app used for tracing - which is probably some local government entity. That app is built on top of Apple/Google API which does all the BT broadcasting and scanning and key generation stuff, but the government still retains the capability of setting up a system for authorizing app users to flag themselves as infected and thus upload their daily keys to some server (which is probably also operated by the provider of the app, I suppose).