Book Image

Blockchain for Enterprise

By : Narayan Prusty
Book Image

Blockchain for Enterprise

By: Narayan Prusty

Overview of this book

The increasing growth in blockchain use is enormous, and it is changing the way business is done. Many leading organizations are already exploring the potential of blockchain. With this book, you will learn to build end-to-end enterprise-level decentralized applications and scale them across your organization to meet your company's needs. This book will help you understand what DApps are and how the blockchain ecosystem works, via real-world examples. This extensive end-to-end book covers every blockchain aspect for business and for developers. You will master process flows and incorporate them into your own enterprise. You will learn how to use J.P. Morgan’s Quorum to build blockchain-based applications. You will also learn how to write applications that can help communicate enterprise blockchain solutions. You will learn how to write smart contracts that run without censorship and third-party interference. Once you've grasped what a blockchain is and have learned about Quorum, you will jump into building real-world practical blockchain applications for sectors such as payment and money transfer, healthcare, cloud computing, supply chain management, and much more.
Table of Contents (14 chapters)
Title Page
Packt Upsell

What is forking in blockchain?

A fork is said to have happened when there is a conflict among the nodes regarding the validity of the blockchain, that is, more than one blockchain happens to be in the network. There are three kinds of fork: regular, soft, and hard.

A regular fork is said to be happening when there are two or more blocks at the same height. It is a temporary conflict and is resolved automatically. This is resolved by nodes by selecting the most accurate blockchain. For example, in proof-of-work, if two miners mine a block at the same time then it creates a regular fork. And, this is resolved by selecting the blockchain with the highest difficulty as the most accurate one. 

A soft fork, by contrast, is any change to the blockchain protocol that's backward- compatible. Say, instead of 2 MB blocks, a new rule might only allow 1 MB blocks. Non-upgraded nodes will still see the new transactions as valid (1 MB is less than 2 MB in this example). However, if non-upgraded nodes continue...