Frontend

• Next.js 15 with App Router
• TypeScript
• Tailwind CSS + Shadcn/UI components
• React Server Components & Server Actions

Backend

• Node.js with Server Actions
• MongoDB for data persistence
• Ethers.js v6 for blockchain interaction
• FastAPI Python microservices

AI/ML Services

• Sentence Transformers (BERT: all-MiniLM-L6-v2)
• YOLO v8 for computer vision
• EasyOCR for text recognition
• ImageHash for perceptual hashing

Blockchain

• Solidity 0.8.28 smart contracts
• Hardhat development framework
• Polygon Amoy testnet (Ethereum-compatible)