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zklottery

zkLottery is a multi-chains decentralized platform for lotteries. It ensures anonymity and eligibility verification using zk's semaphore. Chainlink oracles and Chainlink VRF are integrated for added security.

zklottery

Created At

ETHGlobal Paris

Project Description

Introducing zkLottery, a transparent and secure multi-chains decentralized lottery platform. zkLottery offers a fair and inclusive lottery experience for individual users and projects alike.

Users can easily participate by uploading their lottery entries on the website and earn more chances to win by completing specific missions. These missions not only engage users but also increase their odds of winning.

To ensure unbiased outcomes, zkLottery relies on zk's semaphore, a privacy protocol that allows users to prove their membership without revealing their identity. This anonymous winner verification process ensures the integrity and privacy of the lottery.

The platform integrates Chainlink oracle to onboard real-world data onto the blockchain, enhancing the platform's capabilities and offering a broader range of opportunities. Furthermore, Chainlink Verifiable Random Function is also used for verifiable and provably fair random number generation. Smart contracts securely access random values, and cryptographic proofs validate their authenticity. This guarantees an unbiased and tamper-resistant lottery draw, free from manipulation by any party.

zkLottery maximizes the strengths of Ethereum and Polygon blockchains. Ethereum provides robustness and security for complex smart contracts, while Polygon offers cost-effectiveness and scalability for seamless user interactions. The result is a compelling lottery experience accessible to all users, regardless of their blockchain preferences.

How it's Made

  • Dual Blockchain Integration: zkLottery operates on most EVM compatible blockchains for scalability and cost-effectiveness.

  • Smart Contracts: We deploy smart contracts on both networks to manage the entire lottery process, from entry submission to winner selection and reward distribution.

  • Chainlink Oracles & Verifiable Random Function: Integration with Chainlink oracles and VRF ensures a transparent, unbiased and verifiable lottery draw using real-world data.

  • zk's Semaphore Protocol: Our smart contracts use zk's Semaphore protocol for anonymous interactions and fair winner verification.

  • User-Friendly Interface: Our website allows participants to easily upload entries, view active lotteries, and claim prizes anonymously.

  • Secure Wallet Integration: Winners can claim prizes using different wallet addresses, enhancing privacy and security. Smart contracts handle the process and transfer winnings upon verification.

With its robust architecture, scalability, and privacy features, zkLottery revolutionizes the lottery experience, setting the standard for decentralized lotteries on multiple chains.

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