Ordering food online is part of people’s life—but it still comes with challenges. Customers often need to share personal delivery information across multiple restaurant systems, and in some cases, that data is passed to third parties without consent, creating serious privacy risks. Also, international travelers need to perform a currency exchange operation just to place a simple food order.

This book introduces blockchain, Bitcoin, and a blockchain-based solution for the restaurant sector using Lisk. By leveraging decentralized technology, it proposes a customized system that eliminates intermediaries, reduces transaction fees, guarantees privacy, and security of operations.

At the heart of this work is a Restaurant Proof of Concept built upon the Lisk sidechain network, enabling fast and secure food ordering using the LSK crypto asset. Through empirical studies, the author evaluates its performance in scalability, privacy, auditability, and cost—comparing it to major blockchains like Bitcoin, Ethereum, and Multichain.

A standout feature is the hands-on testing with the Lightning Network on the Bitcoin Testnet, showcasing its strengths in speed and efficiency, as well its limitations for industries with specific operational needs.

The comparative analysis between Lisk-SDK and the Lightning Network offers a unique perspective on blockchain adoption in retail. Whether you're a developer, researcher, or entrepreneur, this book delivers actionable insights—and it's for you.

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