Blockchain Technology and Its Applications in Secure Transactions

Abstract

Blockchain technology has emerged as a revolutionary innovation in the field of digital transactions, offering enhanced security, transparency, and decentralization. It is a distributed ledger system that records transactions across multiple nodes, ensuring that data cannot be altered without consensus. the fundamental concepts of blockchain technology and explores its applications in secure transactions across various sectors such as finance, supply chain management, healthcare, and digital identity systems. how blockchain enhances transaction security through cryptographic techniques, immutability, and decentralized validation, reducing the risks of fraud, data tampering, and unauthorized access. It also discusses the role of smart contracts in automating and securing agreements without the need for intermediaries. Furthermore, the study addresses challenges such as scalability, regulatory issues, high energy consumption, and lack of standardization. blockchain technology has the potential to transform secure transaction systems by increasing trust, efficiency, and accountability. However, its widespread adoption depends on overcoming technical and regulatory challenges.