QuarkID

The Ethereum Name Service or ENS is the decentralized naming protocol that is built on the Ethereum blockchain. It adheres to open-source standards and is based on a set of decentralized smart contracts that translate blockchain addresses into human-readable names.

ZKPassport SDK enables privacy-preserving identity verification using passports and ID cards. It allows developers to request and verify specific identity attributes without exposing unnecessary personal information.

Zupass is a new application powered by Programmable Cryptography. It's a stepping stone towards building the next internet.