Buenos Aires Launches World’s First ZK Digital Identity System

This new system is a big step forward for data privacy. It allows citizens to prove their identity without exposing personal information.

The system is available to 3.6 million people in Buenos Aires. This offers them more control over their digital credentials. Let’s discover more about this ZK digital identity system.

What is ZK-Backed Digital Identity?

Zero-knowledge cryptography is a special kind of technology. It lets people verify who they are or certain facts about themselves without revealing private details. For example: names or addresses. It’s like showing someone the key to your house without letting them see inside. This protects personal data, which is important in today’s digital world.

In Buenos Aires, the ZK-backed system has been added to the city’s “miBA” app . It allows citizens to access important documents, like birth certificates and other records. This is without having to share too much personal information. This is a first-of-its-kind project that gives citizens control over their data, making it easier for them to verify their identity while keeping their private information safe.

Buenos Aires is the first city to issue decentralized IDs to its citizens!

By integrating @Quark_ID into the miBA platform, over 3.6M Buenos Aires citizens now have control over their documents via blockchain and ZK proofs, with Era serving as the settlement layer.… pic.twitter.com/QS4lhvjpE8

— ZKsync (∎, ∆) (@zksync) October 22, 2024

Why It Matters

This new system gives people in Buenos Aires a level of privacy and control that’s never been seen before in government services. When citizens receive their digital credentials, they are fully in charge of them. The government no longer has access to see how, where, or when these credentials are used. It’s like being handed the keys to your own digital life—no one else can look into your private matters.

This change means citizens can use their credentials to access government services. Also, process documents, or get certificates, like birth and marriage licenses, without worrying about their personal information being shared. It’s a real “game changer” for those who care about privacy.

Digital Sovereignty for Citizens

The miBA app now has more than 60 documents available for citizens to use. This gives them access to government portals and services with just a few taps on their phones. This is a big leap toward what some are calling “digital sovereignty”. With this, individuals have full control over their digital lives.

(4/6) The Argentinian city of Buenos Aires is embracing these cypherpunk values as the first city worldwide to issue #DID technology for its citizens that is permissionless, open-source and decentralized. By integrating QuarkID into miBA, the existing identity app for the city,…

— ZKsync (∎, ∆) (@zksync) October 22, 2024

This move by Buenos Aires sets an example for other governments around the world. By using ZK-backed digital identity , they are giving their citizens both security and freedom.

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