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BLOCKCHAIN PROJECTS
Reviews

Reputation System for eCommerce using Blockchain

Why Choose This Project?

Traditional eCommerce platforms rely on centralized rating and review systems, which are susceptible to manipulation, fake reviews, and bias. This blockchain-based reputation system ensures that user ratings, reviews, and seller reputations are immutable and transparent, fostering trust, fairness, and accountability in online marketplaces.

What You Get

Complete Source Code (Frontend + Backend + Smart Contracts)
Fully Working Buyer, Seller, and Admin Panels
Mobile & Desktop Responsive UI
Wallet-Based Login & Authentication (MetaMask optional)
Immutable Rating & Review System
Smart Contract Integration for Reputation Scoring & Incentives
Full Documentation & Setup Instructions
Ready for Real-World Deployment or Resale

Built With Latest Tech Stack

Layer	Technologies Used
Frontend	HTML5, CSS3, Bootstrap 5, JavaScript, React.js / Web3.js
Backend	Node.js (Express.js) / Java Spring Boot (optional)
Blockchain	Solidity, Ethereum / Polygon (Testnet/Mainnet), Hardhat / Truffle
Wallet	MetaMask Integration (Web3 Wallet for rating & incentives)
Storage	IPFS / Off-chain storage for review content
Database	MongoDB / MySQL (for user info, product listings, review logs)
Security	Role-based access, encrypted data, input validation

Features That Make It Market-Ready

Decentralized Reputation Tracking – All reviews and ratings stored immutably on blockchain
Wallet-Based Authentication – Login via MetaMask for secure and verifiable activity
Immutable Reviews – Tamper-proof feedback prevents fake reviews or manipulation
Smart Contract Incentives – Reward honest reviewers with tokens or points
Buyer, Seller & Admin Dashboards – Monitor ratings, reputation scores, and review activity
Real-Time Reputation Updates – Scores and reviews updated instantly across the platform
Notifications & Alerts – Alerts for new reviews, reputation changes, or reward distribution
Scalable Architecture – Support millions of users, products, and transactions

Working Flow

User Connects Wallet / Logs In
→ Login as Buyer, Seller, or Admin via MetaMask
Transaction & Review Submission
→ Buyer completes a purchase and submits a review or rating
→ Review data stored immutably on blockchain
Reputation Scoring
→ Smart contracts calculate seller reputation based on reviews and ratings
→ Honest reviewers may receive token rewards
Dashboard Updates
→ Reputation scores, reviews, and transaction history reflected on dashboards
Audit & Transparency
→ All reviews, ratings, and reputation scores are verifiable on blockchain