UniRep Protocol

UniRep Protocol manages anonymous user data and reputation with zero-knowledge proofs, giving developers a base for forums, voting or review applications where a user proves eligibility without revealing identity. It works at the tension between anonymity and trust: full anonymity invites bots and score farming, while real names hand the platform every behavioural record.

A user registers with a Semaphore identity commitment, derives a batch of short-lived epoch keys to receive attestations, and at the end of each epoch submits a state transition proof that carries reputation into a new state tree while the old keys expire. Attesters register with public, unchangeable addresses, so a user can prove how much reputation a given attester granted without disclosing who they are, and an application sees nothing unless the user chooses to show it. Maintained by the PSE team, with circuits and contracts audited across several rounds, the protocol has produced sample applications for anonymous code collaboration, anonymous DAO voting and anonymous reviews.