The emergence of blockchain technology, with its transparent and decentralized structure, has attracted a lot of interest due to its potential to address the worldwide problem of counterfeit goods. Increased security and trust throughout the supply chain are made possible by the intrinsic immutability and transparency of blockchain, which provide stakeholders more confidence when confirming the legitimacy of goods. In order to create safe and impenetrable systems for product verification, this literature review investigates the combination of blockchain technology with several digital identity techniques. The survey shows the advantages of current blockchain-based anti-counterfeiting techniques, such as enhanced traceability, security, and confidence, as well as their drawbacks, such as scalability, cost, and acceptance issues, by looking at recent research and existing solutions.