The government knows who you are. They know your age, your address and know you exist (probably).
You go to a site that requires ages verification.
You say:please verify me with the government portal.
You go to that portal to get a temporary id code to give to the site.
The website says to the gov portal give me the name and age of the user with this temp ID.
You approve that access.
Portal sends age (or an is over 16/18/21 etc flag) to the site.
Gov portal doesn't need to know who the site is.
You don't provide a unique ID to the website, just a temporary one.
as if codes are temporary, you must have access to the id/login now, not just at some point
Site only gets the data you approve/it requested,.not everything.
The process can do with some streamlining, but should work in practice?
And we recently discovered a clump of dark matter big enough to form a gravitational lens - we could actually see it curving light.
This helps show that dark matter isn't evenly distributed, it's not that we just need to add a multiplier to some equation; it's something that 'exists'.
More infuriating is media's insistence to measure electrical energy cost changes in comparison to some average user instead of just giving the unit price change, useless!
Mine is inside the fuel flap