Enhancing Product Authentication and Counterfeit Detection Using QR Codes and Blockchain Technology

Counterfeit products have been a persistent challenge for businesses and consumers, leading to financial losses, brand damage, and even risks to public health and safety. In recent years, blockchain technology has emerged as a promising solution to address this problem. By leveraging the decentralized and immutable nature of blockchain, businesses can create a tamper-evident and auditable record of a product's journey throughthe supply chain, from its origin to the point of sale. This allows consumers to verify the authenticity of a product andtrust that it has not been counterfeited or compromised. This research explores the potential of blockchain technology for product authentication, reviews the current state of the art, and discusses the challenges and opportunities for future research and development and also provides a case study of a real-world implementation of blockchain-based product authentication, highlighting its benefits and limitations. Overall, it is argued that blockchain technology hasthe potential to revolutionize product authentication and createa more secure and trustworthy supply chain ecosystem.