TokenTwist

This project is a decentralized slot machine game built on the Mina Protocol using the zknoid SDK and Protokit, with the backend powered by o1js library for secure random number generation, the game integrates zero-knowledge proofs to verify fairness without revealing sensitive data. A commit-reveal scheme is employed to ensure that outcomes cannot be altered after a commitment is made, reinforcing trust in the results. The frontend, built with TypeScript and React, provides an intuitive and interactive interface. By combining zk proofs, blockchain, and a user-friendly interface, this project demonstrates the potential of decentralized technologies in delivering provably fair online gaming.

Partner Technologies:

• zknoid SDK and Protokit allowed for easy integration of zk proofs, significantly reducing the complexity of incorporating zero-knowledge components.
• Mina Protocol provided the ideal environment for deploying zk-based decentralized applications, benefiting from its lightweight and privacy-focused approach.

Technologies Used:

• Mina Protocol: The blockchain platform used to deploy the slot machine game, ensuring decentralized and lightweight operation.
• zknoid SDK and Protokit: Used for building zero-knowledge applications and integrating zk proofs into the game for verifiable fairness.
• o1js Library: Handles the random number generation through a commit-reveal scheme, securing the randomness process and preventing tampering.
• TypeScript and React: Used for developing the frontend, providing a dynamic and interactive user experience.

Architecture and Integration:

• The backend and zk components are integrated using the Mina Protocol, enabling zk proofs to verify the fairness of each game outcome.
• The o1js library is crucial for generating secure random numbers, which are verified via zk proofs to ensure the integrity of the game.
• The commit-reveal scheme works by first committing to a random value and revealing it later, ensuring that the outcomes are predetermined and not influenced after the fact.

Notable Hacks and Challenges:

• Implemented custom logic to handle the randomness in a zk-friendly way, ensuring that the proofs were both efficient and verifiable on-chain.
• Optimized the commit-reveal process to reduce latency and enhance the user experience, making the game responsive and engaging despite the underlying cryptographic operations.