Book Image

Hands-On Blockchain with Hyperledger

By : Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd
Book Image

Hands-On Blockchain with Hyperledger

By: Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd

Overview of this book

Blockchain and Hyperledger technologies are hot topics today. Hyperledger Fabric and Hyperledger Composer are open source projects that help organizations create private, permissioned blockchain networks. These find application in finance, banking, supply chain, and IoT among several other sectors. This book will be an easy reference to explore and build blockchain networks using Hyperledger technologies. The book starts by outlining the evolution of blockchain, including an overview of relevant blockchain technologies. You will learn how to configure Hyperledger Fabric and become familiar with its architectural components. Using these components, you will learn to build private blockchain networks, along with the applications that connect to them. Starting from principles first, you’ll learn to design and launch a network, implement smart contracts in chaincode and much more. By the end of this book, you will be able to build and deploy your own decentralized applications, handling the key pain points encountered in the blockchain life cycle.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Packt Upsell

Decentralization and governance

Some of you may be wondering why we are covering governance in a blockchain book. After all, aren't blockchain networks supposed to be decentralized, and thus guarded against the control of a single entity? While this is true from a technology perspective, the reality is that we are human, and for an enterprise-grade blockchain network to succeed, there are a lot of decisions that need to be made throughout the life cycle of the network.

Even bitcoin, the decentralized, anonymous, permissionless network, must deal with important and hard decisions. A case in point is the controversy around bitcoin block size. In the early days of bitcoin, a limit of 1 MB was set on the block size. As the network scaled up, this limit became problematic. Numerous proposals were issued, but the need for a consensus across the entirety of bitcoin nodes made the change difficult to agree on. This debate started in 2015, but the community had to wait until February 2018 for a partial...