Flare Network - BONUS TRACK: external data source or cross chain application
Blockscout - Big Blockscout Explorer Pool Prize
Prize Pool
Project Description
Every day, millions of people receive unsolicited DMs on Twitter, LinkedIn, and Telegram, making it nearly impossible to know whether the person reaching out is genuine or a scammer (an issue even Vitalik highlighted during his keynote).
TrustBuddy tackles this problem by offering a decentralized reputation system across Telegram/Twitter/LinkedIn where users can verify their social handles, leave honest reviews, and check others’ trustworthiness before ever responding to a message.
By combining on-chain reviews, zero-knowledge social proofs, and secure randomness for reward gamification, TrustBuddy empowers users to spot scammers, reward genuine interactions, and build a safer, more transparent online community across the platforms where trust matters most.
How it's Made
Built using Scaffold-ETH 2 for rapid dApp prototyping with a Next.js React frontend and Solidity smart contracts.
Core smart contract deployed on the Flare Coston2 testnet, taking advantage of Flare’s secure on-chain RNG to gamify TBT (Trust Buddy Token) rewards for reviews.
Integrated vlayer’s zk Web Proofs to cryptographically verify users’ Twitter handles, ensuring that only authentic social identities can be reviewed.
Each review submission triggers a Blockscout link for full transparency, allowing users to instantly verify on-chain transactions; the contract is verified and publicly accessible on Blockscout.
Implemented a dynamic reward mechanism where the amount of TBT earned per review is determined randomly via Flare’s RNG, adding an engaging and fair gamification layer.