It already exists, it's your phone.
There are some limits in linking it to existing identifiers like names or SSNs. However, that doesn't matter because due to its nature, the phone leaves a trail. Any serious abuse can be punished.
There are some limits in linking it to existing identifiers like names or SSNs. However, that doesn't matter because due to its nature, the phone leaves a trail. Any serious abuse can be punished.
Since we are talking about introducing a new identity system, isn't it easier to resolve the problems you mentioned than to introduce something new?
If somebody commits a serious crime, the joined location of the phones will reveal the true identity unless somebody invests an amount of effort that's equal to buying a new passport.
Intelligent agencies have failed to keep their phone usage cleanly separated. It's not that easy.
E.g. if you want to avoid progressive income taxes by registering several companies, your burner phone stands out because it doesn't have any other contacts. That will be further investigated.
Then you need the name of a living person who doesn't use a mobile phone to register it because otherwise, he would operate two phones at two different places. Another red flag.