Vitalik: A diversified zero-knowledge digital identification is the "best real-world solution" for protecting privacy.
Gate News bot news, on June 30, Ethereum co-founder Vitalik Buterin stated that despite the use of zk-SNARKs, a "one person, one certificate" digital identification system would still jeopardize privacy.
World ID (formerly Worldcoin) offers ID based on biometric data and zk-SNARKs that is becoming increasingly popular among users.