EduChain is an education and blockchain application developed by Ancel Ajanga. ERC721 NFTs and IPFS decentralized storage power tamper-proof academic certificates on Ethereum. Hybrid storage: MongoDB, IPFS, and blockchain for verification.

EduChain is a resilient, decentralized certificate management system architected on Web3 principles, issuing verifiable academic certificates as ERC721 NFTs on the Ethereum blockchain. The platform enables educational institutions to issue tamper-proof, blockchain-verified certificates while providing students with permanent, verifiable proof of achievements through hybrid storage (MongoDB + IPFS + Blockchain). The architecture follows a hybrid storage design: React 19 frontend with RainbowKit for wallet connection, Node.js/Express backend for certificate management, MongoDB for efficient querying, IPFS (via Pinata API) for decentralized metadata storage, and Ethereum blockchain (Sepolia testnet) for immutable certificate verification. Smart contracts use OpenZeppelin v5 ERC721 standard with ReentrancyGuard protection. Service isolation is achieved through separate layers: frontend wallet interactions are isolated from backend API calls, IPFS operations are handled asynchronously, and database operations use MongoDB transactions for atomic batch operations.

EduChain: Tamper-Proof Certificates on the Blockchain

Decentralized certificate management: ERC721 NFTs on Ethereum, IPFS metadata, RainbowKit, Node/Express, MongoDB; instant verification and hybrid storage.

verifiable, tamper-proof academic credentials without central authority.

EduChain - Blockchain Certificate Management