zkDine

zkDine: Privacy-First Group Dining Powered by zkProofs & Starknet

zkDine is a decentralized app that lets people create and join private group dining events where each attendee submits their preferences such budget, dietary restrictions, allergies, etc securely and anonymously. Once everyone has provided their preferences, a restuarant is chosen.

Using zero-knowledge proofs (zkProofs) built with Noir, zkDine ensures individual preferences are never revealed to other participants, event organizers, or third-party services. Instead, zkProofs prove that votes are valid and consistent with users’ committed profiles without exposing any sensitive data.

By leveraging Starknet’s scalable zk-rollup platform, zkDine stores immutable commitments and verifies zkProofs on-chain with minimal gas fees, ensuring a trustless and censorship-resistant experience. This guarantees fairness and transparency in aggregating user preferences and selecting the optimal restaurant, all while preserving user privacy.