Authors - Aafiya Anjum Abdul Rafique, Martin H Mollay, Shailesh Gahane, Deepak S. Sharma, Pankajkumar Anawade Abstract - Blockchain technology is a complete makeover for digital identity management, which solves the major problems seen with the previous centralized systems, like inefficiency, lack of control in front of the users, and susceptibility towards data breaches. The paper draws the modes of changing the digital identification system using blockchain technology by providing insights into how it is decentralized, transparent, and safe. Blockchain could improve privacy and trust by advising people to take control of their data and reduce dependency on other parties. The literature analysis shows that blockchain technologies, particularly those based on cryptographic security, give solid answers to privacy problems, which allow users to share data but keep sensitive information safe. Analysis of scalability issues, limitations in storage, and massive computational overhead of consensus protocols like Proof-of-Work. It proposes alternative solutions such as proof-of-stake, sharding, and sidechains that may circumvent their weaknesses. Interoperability between different blockchain systems remains one of the most significant areas of development toward support at a broader scale of adoption. Despite the challenges above, blockchain has immense possibilities in many sectors, including government identity systems, healthcare, and finance, for safe and independent management of identity. It underlines the revolutionary importance of blockchain-based identification solutions within the digital economy. It calls for further research, pilot projects, and regulatory modifications to overcome these issues and realize the full potential of these solutions.
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