Technically it is possible. The complaint that people have is that they don't trust that any government will get it right. But it is technically possible with known cryptography.
But if you accept the caveat (like we do for cigarettes, where an adult can buy cigarettes and then give them to a kid), you don't need to remote attestation part.
And if you have to trust the government to get it right then you have already lost because they are definitely motivated to NOT get it right because they WANT to track you.
Of course it is. Read the sentence again:
> The government still gets to know what you're doing online. How is that privacy?
It is technically possible to achieve that without the government knowing what you are doing online.
> With true anonymity you can also re-sell tokens making them meaningless.
You can re-sell tokens, just like you can re-sell cigarettes. Does that make the system meaningless? Harder to prove.
> And if you have to trust the government to get it right
The whole point is that you don't have to trust; you can verify. The system has to be open source of course.
It doesn't mean that they will do it right, but it is technically possible.