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Review Article

Fundamentals and Applications of Blockchain Technology

Priyanka Jaiswal1

¹ Department of Computer Applications, Veer Bahadur Singh Purvanchal University, Jaunpur, Uttar Pradesh, India.

Published Online: September-December 2025

Pages: 239-241

Abstract

Blockchain technology has evolved from its origin as the foundation of cryptocurrencies into a versatile, decentralized framework for secure data management. Its core features include decentralization, immutability, transparency, and cryptographic security which enable trustworthy interactions without centralized authority. This review presents a comprehensive examination of blockchain fundamentals, including architecture, consensus mechanisms, and smart contracts, followed by applications across finance, supply chain, healthcare, IoT, and government systems are highlighted.

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