There are even cooler ways of doing this, look up eIDAS and/or Zero-Knowledge Proofs. Basically, with the right cryptography, my app can prove my license is va

There are even cooler ways of doing this, look up eIDAS and/or Zero-Knowledge Proofs. Basically, with the right cryptography, my app can prove my license is valid without revealing any PII. Or in the case of eIDAS, binary questions like "is rekoil 18 years or older?".