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IEEE/ICACT20260235 Slide.10        [Big Slide]       [YouTube]	Oral Presentation
	The system uses a React-based DApp for product registration, transfer, and QR authentication, relying on blockchain identity instead of traditional logins. Web3.js connects the frontend to Ethereum smart contracts, while MetaMask securely manages user authentication and transaction signing. Alchemy ensures reliable and scalable node access, and Solidity smart contracts handle all core supply chain, recycling, profit, and tax logic on the Ethereum blockchain, guaranteeing immutability and decentralization.

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