Which digital identity innovation has been most widely adopted by democratic governments to reduce fraud in social benefit systems while improving accessibility?

In the evolving landscape of government services, digital identity verification systems have become crucial for secure access to citizen services. These systems represent a significant intersection of Product Design, IoT connectivity, and government operations. This trivia question tests your knowledge about recent innovations in government digital identity solutions that are transforming how citizens interact with public services.

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Blockchain-based identity verification with citizen-controlled data sharing permissions
Facial recognition systems with mandatory enrollment for all citizens
Single-use QR codes generated by government apps for each service interaction
RFID-embedded national identity cards with continuous location tracking