The city of Buenos Aires has announced that it will roll out a blockchain-based, privacy-focused digital ID wallet starting in October. The Quarkid project, previously known as Tangoid, will allow its users to download a “self-sovereign” wallet to hold their birth and marriage certificates, with more digital documents to be added later this year. Buenos Aires to Roll Out Blockchain-Based ID Program The City of Buenos Aires government announced the deployment of a digital, blockchain-based “self-sovereign” ID project for its citizens. The wallet, called Quarkid, formerly known as Tangoid and scheduled to be operating by last January, will supposedly allow its users to exert full ownership of their data, granting only trusted and permissioned third parties access. The Quarkid wallet will use Zksync Era, a zero-knowledge (ZK) Ethereum L2 (Layer 2) protocol, as its base, allowing the use of this kind of mathematical proof for privacy and confidentiality purposes. Quarkid was co-creat...
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