Based on the Ethereum blockchain, Iden3 is one of the trailblazing protocols in decentralized privacy. It uses zk-SNARK, which is a more battle-tested method for securing privacy.  With its native naming service, Iden3 hopes each user in Web3 will transact and carry out on-chain activities more anonymously. Although Iden3 started on Ethereum, it is scaling to layer-2 solutions for accessibility.