Book Image

Blockchain Developer's Guide

By : Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty
Book Image

Blockchain Developer's Guide

By: Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty

Overview of this book

Blockchain applications provide a single-shared ledger to eliminate trust issues involving multiple stakeholders. It is the main technical innovation of Bitcoin, where it serves as the public ledger for Bitcoin transactions. Blockchain Developer's Guide takes you through the electrifying world of blockchain technology. It begins with the basic design of a blockchain and elaborates concepts, such as Initial Coin Offerings (ICOs), tokens, smart contracts, and other related terminologies. You will then explore the components of Ethereum, such as Ether tokens, transactions, and smart contracts that you need to build simple DApps. Blockchain Developer's Guide also explains why you must specifically use Solidity for Ethereum-based projects and lets you explore different blockchains with easy-to-follow examples. You will learn a wide range of concepts - beginning with cryptography in cryptocurrencies and including ether security, mining, and smart contracts. You will learn how to use web sockets and various API services for Ethereum. By the end of this Learning Path, you will be able to build efficient decentralized applications. This Learning Path includes content from the following Packt products: • Blockchain Quick Reference by Brenn Hill, Samanyu Chopra, Paul Valencourt • Building Blockchain Projects by Narayan Prusty
Table of Contents (37 chapters)
Title Page
About Packt


You should now understand the difference between a decentralized application and a distributed application. A distributed application is one that is spread across many servers and systems, and ideally, the computers involved are also spread across multiple geographic regions for purposes of backup, processing, and availability. A DApp is one in which no single company, person, or group has control over the operation of the application.

While there are many blockchain applications coming to market, not all of them are truly decentralized. In many cases, these applications are merely distributed differently than prior applications by piggybacking on a public blockchain network. If a company or a few key users still control the operation and function of an application, then that application is not truly decentralized, even if it runs on a decentralized network.

You should now be aware of many of the largest blockchain-oriented decentralized applications currently in existence, their interrelationships...