This book offers a clear and structured introduction to blockchain technology, explaining how distributed ledgers work and why they represent a significant shift in the way data, transactions, and digital trust are managed. It examines the core components of blockchain systems, including cryptographic foundations, consensus mechanisms, public and private blockchains, and the relationship between blockchain and cryptocurrencies such as Bitcoin. The text also explores how blockchain addresses issues of transparency, security, accountability, and data integrity within decentralized networks. The book is intended for readers seeking a foundational understanding of blockchain, including students, professionals, and general readers with an interest in technology, digital systems, and emerging financial infrastructures. It adopts an explanatory and analytical approach, combining technical concepts with real-world examples and use cases across areas such as finance, supply chains, governance, digital identity, and smart contracts, while maintaining an accessible and educational tone throughout.
