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What is Rarimo?

Rarimo is building a permissionless ZK Registry that redefines how identities, interactions, and social graphs are managed. Unlike traditional identity protocols that depend on centralized issuers or specialized hardware, Rarimo uses client-side proving to deliver a truly censorship-resistant backbone. Instead of striving to build a universal identity, Rarimo embraces a pluralistic approach. This empowers developers to create applications that respect user anonymity while preserving historical interactions and ensuring continuity of identity.

What is a ZK Registry?​

The ZK Registry is a ZK Rollup that functions as an on-chain registry for abstract statements. It enables proving the system's state without revealing details about individual statements. By aggregating standardized, provable statements in a permissionless registry, the ZK Registry provides a flexible foundation for many use cases. Developers can implement protocols like identity verification, reputation, and proof-of-attendance with minimal effort, making it easier to build privacy-preserving applications.

Permissionless self-issued identities with ZK Passport​

ZK Passport Registry transforms biometric passports into unique, privacy-preserving digital identities. Unlike most solutions, it combines decentralized infrastructure, reliable uniqueness verification, and privacy.

Decentralization is achieved through self-issuance: since passports already contain the necessary validity data, no third-party issuer is needed, making it self-serve and resistant to shutdown.

Uniqueness is ensured by publishing passport hashes on-chain, allowing users to prove their inclusion in the registry. With each additional user and application, privacy strengthens through a network effect, making it increasingly challenging to deduce individual actions, whether related to protests or meme coins.

Learn more at ZK Passport.

ZK Reputation​

The ZK Reputation Registry allows users to prove their reputation based on private relationships and interactions, without exposing sensitive details. By leveraging zero-knowledge proofs, users can verify their trustworthiness and standing in various communities while maintaining complete control over their privacy.

Learn more at ZK Reputation.

Launch your own ZK Registry​

ZK Registry is entirely open-source and built with extensibility in mind. If your DApp can benefit from private yet provable data, bring it on!

Why a ZK Rollup?​

Rarimo deploys the ZK Registry to a dedicated ZK Rollup to leverage Ethereum's security and interoperability while maintaining affordability and flexibility. Additionally, ZK Registry updates can be propagated to other Layer 1 networks, ensuring seamless synchronization of root states across multiple ecosystems.

Ecosystem​

Several applications are being built on top of Rarimo:

  • RariMe App: A self-sovereign mobile wallet for managing digital identity.
  • Freedom Tool: A privacy-preserving voting solution designed for e-democracy.

Can I use it now?​

Yes and no. While the Rarimo ZK Registry is still under development, you can already access and use technologies like the RariMe App, ZK Passport, and Freedom Tool.