Abstract
The supply chain management industry is struggling with inadequate resources for efficient authenticity verification. Blockchain technology and smart contracts can overcome such conventional limitations to authenticate products in an easy, economical and secure manner. Decentralized and immutable blockchain systems allow product tracking to its origin.In this paper we have proposed and implemented a system for product authentication using blockchain technology based on ethereum platform by making use of smart contracts. We have analysed the existing centralized system and the need to shift from the existing centralized system to a decentralized blockchain based ledger technology. The use of blockchain technology in supply chain technology has reduced the complexity in product authentication by making the entire history of the product available from its production stage till it reaches the customer.
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