The Argentine capital has introduced QuarkID, a blockchain-based identity system that improves privacy and security using ZK technology.
Buenos Aires has adopted blockchain technology to secure digital identities.
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Posted October 22, 2024 at 8:00 AM EST.
Buenos Aires, the capital of Argentina, has introduced a blockchain-based digital identity system for its 3.6 million citizens, marking a world first for government-backed decentralized identity technology. The new system, QuarkID, uses zero-knowledge (ZK) cryptography via the Era layer 2 blockchain powered by ZKsync, and is integrated with the city’s MiBa digital platform which allows residents to access services and documents . The initiative aims to give citizens more control over their personal data while improving privacy and security.
Since October 1, all miBA users have been issued decentralized digital identities (DIDs), allowing them to securely manage and share verified documents, such as birth certificates and tax records. The city says this represents a significant change in the way personal data is processed. “The integration of zero-knowledge blockchain technology into the city’s digital identity system constitutes an unprecedented step that positions us globally,” Jorge Macri, head of government of Buenos Aires, said in a statement press.
The main innovation of the system lies in the use of ZKsync technology, which allows citizens to verify their credentials without exposing unnecessary personal data. For example, individuals can confirm their age without sharing their full date of birth or other personal information. “By giving residents control over their identity, we not only improve privacy and security, but we also lay the foundation for a future where ownership of personal data is a fundamental right,” said Diego Fernández, Secretary of State. State to innovation and city security. Digital transformation.
In addition to privacy, the system offers enhanced security. According to Fernández, “this initiative demonstrates the power of blockchain to revolutionize government services by allowing citizens to own their data securely.”
Buenos Aires plans to expand the system, eventually allowing residents to use QuarkID to obtain more documents, including driver’s licenses and public permits. QuarkID has already been tested in countries like Mexico, Colombia and Peru, and could soon be adopted by other provinces in Argentina.
The initiative could serve as a model for other cities and governments exploring the use of blockchain technology to improve digital identity systems.
