LIVE DEMO = https://ddbc.vercel.app/
NOTE : As there is admin approval, your MetaMask wallet will not be Authorized.
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🔍 The Challenge
Traditional certificates are:
❌ Easy to forge
❌ Slow to verify
❌ Prone to loss/damage
❌ Difficult to share digitally
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💡 My Solution
A Web3 application that issues tamper-proof certificates as NFTs on the Polygon blockchain, ensuring:
✅ Immutable, fraud-proof credentials
✅ Instant verification via QR code / Token ID
✅ Decentralized storage with IPFS
✅ Lifetime accessibility
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🛠️ Tech Stack
⛓️ Smart Contracts: Solidity (ERC-721)
💻 Frontend: Next.js 14 + Tailwind CSS
🔗 Web3 Integration: Ethers.js v6
☁️ Storage: IPFS (Pinata)
🦊 Wallet: MetaMask
⚙️ Development: Hardhat
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📊 Key Features
✨ Admin dashboard for issuance
✨ Public verification portal
✨ QR code generation for easy sharing
✨ Role-based access control
✨ Certificate revocation capability
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🏆 Achievements
• Smart contract deployed on Polygon Amoy Testnet
• Complete CRUD operations for certificates
• Responsive UI with Tailwind CSS
• Integrated decentralized storage (IPFS)
• Comprehensive test suite
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🌍 Impact
This system empowers:
🎓 Universities → Issue tamper-proof degrees
👨💼 Employers → Verify credentials instantly
👩🎓 Students → Lifetime access to certificates
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💼 Open to opportunities in Web3 Development, Blockchain Engineering, and Full-Stack Development.
🤝 Let’s connect if you’re building in the decentralized future!
hashtag#Blockchain hashtag#Web3 hashtag#Solidity hashtag#NextJS hashtag#NFT hashtag#SmartContracts hashtag#IPFS hashtag#Polygon hashtag#Innovation hashtag#EdTech hashtag#DigitalCredentials hashtag#DeveloperLife
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