The city of Buenos Aires has taken a major step toward digital transformation by rolling out blockchain-powered digital identities for over 3.6 million residents. The initiative, introduced in October, integrates QuarkID, a decentralized identity solution, into the city's miBA platform, which provides access to government services. This move marks a significant milestone as blockchain technology begins to reshape how personal data is managed and secured.

QuarkID, built by Web3 firm Extrimian, uses zero-knowledge cryptography through the ZKsync Era protocol, ensuring both security and privacy. By adopting this technology, Buenos Aires empowers its citizens to have control over their data, enhancing privacy protection and setting a new benchmark for digital identity management. The city's efforts reflect the growing influence of blockchain in public services, as more official documents like birth and marriage certificates are now being stored securely on the blockchain.

Diego Fernández, the city's secretary of innovation, emphasized the broader potential of blockchain technology, explaining that this move is not just about finance but about revolutionizing how citizens interact with their data. He noted that the city's commitment to blockchain initiatives lays the foundation for a future where personal data ownership becomes a protected right.

In addition to its digital ID efforts, Buenos Aires has also integrated blockchain education into high school curriculums, offering students classes in Ethereum programming, a move that further positions the city as a leader in blockchain innovation.

This blockchain-based digital ID initiative puts Buenos Aires at the forefront of modernizing government services through cutting-edge technology.