I wonder if there would be any way to implement some alternative identification system that would enable the benefits the article mentions, but still allow for

I wonder if there would be any way to implement some alternative identification system that would enable the benefits the article mentions, but still allow for privacy that does not require a trustworthy government. I think, if the government can be trusted (always questionable, but sometimes true), a national ID is clearly an efficient solution. But if government can't be trusted, then maybe some kind of decentralized pseudonymity-based system could work. The state could tax the pseudonyms, they might hold the access rights to medical records etc. Of course this would be cumbersome and allow a certain level of fraud, but might still be an interesting alternative in hostile environments (the state either opposes what one does, or at least does not support it). Maybe one should look into how guerrillas and organized crime identify people that belong to their networks.