Soulbound Certificate Platform
A decentralized platform for issuing and verifying educational certificates as non-transferable Soulbound Tokens (SBTs) on the blockchain.
Technologies Used
Overview
A Web3 application that allows institutions to issue tamper-proof educational certificates as Soulbound Tokens (SBTs). SBTs are a new type of NFT that cannot be transferred, ensuring they are permanently and uniquely bound to the recipient's wallet, providing a robust solution for digital credentials.
Key Features
- Non-Transferable Certificates (SBT): Implemented by overriding transfer functions in the ERC-721 smart contract.
- Decentralized Metadata: Certificate details are stored on IPFS, ensuring permanence and censorship resistance.
- Dual-Page Interface: A secure page for issuers to mint certificates and a public page for anyone to verify credentials.
- Wallet Integration: Seamless connection with MetaMask and other Web3 wallets using Wagmi and RainbowKit.
Technical Implementation
The project is built on the Polygon testnet for cost-effective transactions. The core logic is a Solidity smart contract using OpenZeppelin's ERC-721 standard, developed with the Hardhat framework. The frontend is a Next.js application with TypeScript, utilizing Wagmi for blockchain interactions and IPFS (via Pinata) for storing off-chain certificate metadata.