TraceChain - Blockchain-Based Product Traceability Platform ⛓️

A powerful and transparent blockchain solution that empowers businesses to track products and enables consumers to verify authenticity with a single QR code scan.

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🔗 Live Project

🔗 URL: Visit TraceChain Live 🔗 YouTube Video: https://youtu.be/PH1kvcgdLAo

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📂 Problem Statement

Today, customers want to know:

• Where a product came from
• Whether it's genuine or fake
• If it's made ethically (no harmful practices)

But supply chains are complex:

• Product details get lost or manipulated
• Fake certifications are common
• No unified, tamper-proof history exists

This leads to counterfeiting, health risks, and loss of trust.

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✅ Our Solution: TraceChain

We built TraceChain, a blockchain-powered platform to solve this:

• Every step (sourcing → production → packaging → delivery) is logged on a tamper-proof blockchain
• Businesses use the admin dashboard to record product data and generate blockchain-verified QR codes
• Consumers scan the QR code to verify product authenticity, certifications, and history

Result: Full transparency and trust for both consumers and businesses.

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🏢 Features Overview

👥 Multi-Role Authentication

• Admin Login: Full dashboard access
• Consumer Access: View-only interface with QR verification
• Auth: Secure authentication for both roles
• Role-Based Isolation: Each admin sees only their products

💼 Admin Dashboard

• Dashboard Tab: Real-time stats, product activity feed
• Products Tab: Manage product list and status
• Create Product: Add product, batch details, auto-generate QR
• Blockchain Tab: View transaction hash, gas usage, network info

👤 Consumer Dashboard

• QR Scanner: Scan QR on product
• Product Timeline: Blockchain-verified steps
• Certifications: Display food safety, ISO, and ethical sourcing certs
• Sample Products: Try demo verifications
• Trust Indicators: Verified badges

⚖️ Blockchain Integration

• Ethereum-style smart contract simulation
• Key functions: addTraceabilityStep(), getProductHistory()
• View gas costs, transaction confirmations, block explorer links
• Batch logging supported

🔐 Enterprise-Grade Security

• Role-based access control
• Admin-specific product views
• Blockchain immutability
• Secure QR code mapping
• Audit logging for all traceability steps

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🚀 Try It Locally

# Clone the Repository
git clone https://github.com/yourusername/TraceChain.git
cd TraceChain

# Install dependencies
npm install

# Start the app
npm start

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🎓 Tech Stack

• Frontend: React + Tailwind CSS
• Backend: Node.js + Express + Mongodb
• Blockchain: Ethereum-style smart contracts (simulated)
• QR Code: qrcode.react

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📆 How It Works

For Businesses:

1. Login as admin
2. Create a product: enter name, batch ID, origin, etc.
3. Add traceability steps (packaging, transport, testing)
4. Upload certificates (e.g., ISO, FSSAI)
5. Generate QR code (linked to blockchain history)

For Consumers:

1. Scan QR code on the product package
2. View full blockchain-verified product timeline
3. See origin, processes, and safety certifications

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📊 Industry Applications

• 🌾 Food & Agriculture
• ⚕️ Pharmaceuticals
• 🎗 Manufacturing
• 👗 Fashion & Retail
• 🌺 Cosmetics

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🌟 Core Highlights

• ✅ Real-world problem solving
• 🤝 Consumer and business trust
• ⚖️ Blockchain integration done right
• 🏦 Admin/Consumer role separation
• 🚀 Fully responsive UI/UX

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📚 Contributors

Built with passion by:

• Kuruvapavani
• Jahnavikotra
• Mudadla Yogitha

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📧 Contact

Have questions or suggestions? Email: mudadlayogitha440@gmail.com

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Built with ❤️ by the Team 404 ✨