what's Zupass?

Zupass is a decentralized verification protocol that leverages zero-knowledge proofs (ZKPs) to enable privacy-preserving identity and credential verification. It allows users to prove attributes—such as event attendance, membership, or eligibility—without revealing sensitive personal information. Built on Ethereum-compatible chains, Zupass uses Semaphore, a ZKP library, to generate verifiable credentials that can be checked on-chain or off-chain, ensuring scalability and user control over data. The protocol is particularly useful for Web3 communities, events, and DAOs, where traditional ticketing or access control can be cumbersome or privacy-invasive. For instance, at Ethereum events like Devconnect, Zupass enables ticket holders to verify eligibility for perks or exclusive access via a simple QR code scan, all while maintaining anonymity. Its modular design supports integration with wallets like MetaMask, making it accessible for non-technical users. Zupass is developed by the Privacy & Scaling Explorations team, focusing on real-world applications of ZK technology to bridge the gap between digital identity and blockchain privacy. It emphasizes open-source principles, with ongoing improvements in proof generation efficiency and cross-chain compatibility.

Zupass is an Ethereum ZK identity layer for selective disclosure, mapped by Web3Privacy and reposted by Ethereum Foundation.