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Built a blockchain-based diploma verification system as my final year project 🎓
DiploChain lets institutions issue diplomas that get recorded on the Ethereum blockchain, so anyone (employers, other schools) can instantly verify a diploma is real — no more fake credentials.
The stack:
→ React.js for the frontend
→ Node.js + Express for the backend
→ PostgreSQL for data
→ Solidity smart contract for the actual verification logic
Three interfaces: one for institutions to issue diplomas, one for students to manage theirs, and one for anyone to verify a diploma by scanning a QR code or entering a hash.
Graded 16/20 by my jury, and now I'm looking to bring the same full-stack + blockchain skills to freelance projects.
Live demo: diploma-app-sigma.vercel.app
GitHub: github.com/zbatti-droid
Open to React/Node.js work — feel free to reach out 👋
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I’m Talha, a Full-Stack Engineer specializing in Three.js, WebGL, React Three Fiber, and high-performance Web Development.
I build browser-native 3D product configurators, interactive BIM/IFC viewers, and custom WebGL applications that bring desktop-grade spatial experiences straight into the web browser.
As I’m new to Contra, I’d love to learn from experienced freelancers here: What strategies or workflows worked best for landing your very first client on Contra?
Any quick tips on proposal outreach, portfolio structuring, or client discovery on the platform would be super helpful!
Looking forward to connecting with fellow builders and clients here! 🚀
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Engineered an offline-first architecture using IndexedDB for uninterrupted token generation without internet.
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Built a real-time TV display syncing architecture with Next.js.
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