ProofChain
A blockchain-based verification system for digital records and submissions. Status: Hackathon MVP
ProofChain was built during the SUI Hackathon to demonstrate how blockchain can be used to verify authenticity, prevent tampering, and provide transparent proof of ownership or submission.
Project Overview
ProofChain enables users to submit records (documents, proofs, or digital artifacts) that are hashed and stored on-chain, ensuring immutability and public verification. The goal is to reduce fraud, disputes, and centralized control over sensitive proofs.
- Category: Blockchain / Web3
- Role: Frontend, Product Logic, UX
- Event: SUI Hackathon
- Tech Stack: SUI Blockchain • JavaScript • Web UI
UI & Flow Preview
Selected screens from the ProofChain MVP.
Core Features
- ✔️ Hash-based document verification
- ✔️ Blockchain-backed immutability (SUI)
- ✔️ Public verification via transaction ID
- ✔️ Simple, minimal user interface
- ✔️ Hackathon-ready MVP architecture
Technical Architecture
- Frontend: HTML, CSS, JavaScript
- Blockchain: SUI smart contracts
- Data Handling: Hashing + on-chain references
- Deployment: Static frontend + blockchain backend
Challenges & Lessons
Building ProofChain highlighted the importance of balancing decentralization with usability. The main challenge was simplifying blockchain interactions so non-technical users could still verify records confidently.
Future Improvements
- Wallet-based user accounts
- Batch document verification
- Improved UI feedback & error handling
- Use cases for education & certificates
- Production-grade smart contracts