A real-time decentralized data synchronization system built using GUN.js, featuring peer-to-peer sync, blockchain-style hash verification, tamper detection, and distributed integrity monitoring.

• 🔄 Real-time peer-to-peer data synchronization
• 🔐 Blockchain-style hash generation for integrity verification
• ⚠️ Tamper detection for unauthorized data modification
• 🌐 Multi-tab / multi-peer live synchronization demo
• 📊 Dashboard for monitoring nodes and data flow
• 🧩 Distributed architecture using GUN.js
• 🛡️ Data integrity validation and verification workflow

• Frontend: HTML, CSS, JavaScript
• Backend / Database: GUN.js
• Runtime: Node.js
• Concepts Used: Blockchain hashing, P2P sync, distributed systems, tamper detection

project/
│── index.html
│── app.js
│── style.css
│── server.js
│── package.json
│── README.md

1. Clone the repository

git clone <your-repo-link>
cd Hybrid-Decentralized-Data-Synchronization-with-Blockchain-Integrity-Verification

2. Install dependencies

npm install

3. Start the server

node server.js

4. Open in browser

http://localhost:3000

1. Open the app in two browser tabs
2. Add or edit synchronized data in one tab
3. Watch instant sync in the second tab
4. Modify stored data manually to simulate tampering
5. System detects mismatch using hash verification
6. Dashboard shows integrity validation result

• Research data synchronization
• Distributed note sharing
• Tamper-proof record systems
• Academic blockchain demonstrations
• Hybrid decentralized applications

This project demonstrates a hybrid model combining decentralized CRDT-style synchronization with blockchain-inspired integrity checks, making it highly suitable for:

• IEEE papers
• M.Tech thesis demos
• Viva presentations
• Distributed systems research

Nithin Kumar N M.Tech / Computer Science MVJ College of Engineering

gunjs blockchain p2p web3 tamper-detection distributed-systems data-integrity