CredentialsZK

The Trustless Credential Hub is a decentralized platform enabling secure, real-time credential verification—such as age, education, or qualifications—without exposing any personal data. Users receive credentials as digital attestations issued on-chain, store them in their Web3 wallet, and generate cryptographic proofs to respond to verification requests. Institutions can issue and revoke credentials, while verifiers check eligibility instantly, all via an intuitive interface. The solution leverages blockchain immutability, smart contracts for transparent audit trails, and zero-knowledge proof protocols so that users prove eligibility (for jobs, fintech, or education) without sharing underlying documents or sensitive metadata. This preserves privacy, eliminates manual checks, enables cross-border compatibility, and dramatically cuts verification time and risk.

This project is built with Next.js 14 and React for the web interface, leveraging thirdweb and Alchemy for smart contract deployment and wallet integration (MetaMask/WalletConnect). Polygon PoS is used for on-chain storage and identity registry, while credential proofs employ the Polygon ID platform and Circom circuits for zk-SNARK generation. AI/NLP features (ContextGNN, HuggingFace skill models) extract and tag skills from credentials, enabling semantic search capabilities. Data is encrypted on IPFS using Lit Protocol for conditional access. The architecture is fully modular; partner libraries (thirdweb, Polygon ID, Alchemy, OpenAI) save development time and add security. Notably, all credential proofs happen client-side, meaning no sensitive information ever leaves the user’s device, and verifiers receive only a cryptographically guaranteed “yes/no” result. The team created custom React wallet connect components with a glassmorphic dark gradient style, making the user journey seamless and modern.