The capital of Argentina, Buenos Aires, has announced the implementation of blockchain technology and zero-knowledge cryptography for the issuance of digital identities, reports Cointelegraph.
According to local media reports, the government disclosed on 21 October that it has integrated the decentralized identity solution QuarkID into its miBA digital platform — the city’s platform for accessing government services and documents.
Since 1 October, more than 3.6 million active users of miBA have received decentralized digital identities (DIDs) secured by QuarkID — a digital identity protocol built by Web3 firm Extrimian. The QuarkID wallet is powered by ZKsync Era, an Ethereum scaling protocol using zero-knowledge rollups.
“By giving 3.6 million residents greater control over their personal data, the city is setting a new standard in privacy and security for digital identity management,” according to a translated statement by the Buenos Aires government.
Buenos Aires has been rolling out blockchain-based initiatives over the past few years. In September 2023, the city announced that birth and marriage certificates would be the first documents available onchain, followed by proof of income and academic records.
