janpio/croissant

Croissant is a proof of concept that helps Web3 communities verify and record the impact of onboarding new users. The core idea is that when a community brings new members in, it can use this tool to have those members watch a tutorial, take a quiz, prove they are a real person, and then receive a verified, on-chain attestation that they completed the onboarding. This creates a trustworthy record of who joined and what they learned. Here is how the process works. A community forks the project and gets a dashboard where they can assign admins, set a tutorial video URL, and write quiz questions. Members then watch the tutorial, answer the quiz, and verify their personhood using a tool called WorldID. If they answer correctly, the system issues them a cross-chain attestation, meaning the verification is recorded on multiple blockchains at once. The people who would use this are Web3 community managers, DAO organizers, or project founders running campaigns to bring new users into their ecosystem. For example, a project on Optimism that wants to prove real humans (not bots) are learning about their protocol could set up a quiz, and every member who passes gets a permanent, verifiable credential stored on-chain. This helps prevent Sybil attacks, where one person creates many fake identities to exploit a system. The project was built at Superhack 2023 using several existing Web3 tools. It uses a template called ScaffoldETH2 for its interface, and it relies on a service called the Ethereum Attestation Service to create the actual verification records. To make these records work across different blockchains, it uses Chainlink's cross-chain messaging technology. The contracts have been deployed on several test networks including Optimism, Sepolia, Base, and Mode. The README also includes a proposal for running a Base network node more simply, by streamlining the setup process. However, that appears to be a side contribution rather than the main focus of the project itself.