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
Copyright
About Packt
Contributors
Preface
Index

Hyperledger projects


As mentioned, a hyperledger isn't a single blockchain technology, but rather a collection of technologies donated by member companies. While there is a long-term goal of greater integration between projects, currently most of the Hyperledger projects function independently. Each project's core code base was donated by one or more of the Hyperledger member organizations, based on problems they were trying to solve internally before open sourcing the code and handing ownership to the Linux Foundation.

Hyperledger Burrow

Hyperledger Burrow is a re-implementation of the Ethereum Virtual Machine (EVM) and blockchain technology, but with a few key changes. First, instead of using the proof-of-work consensus algorithm used by the public Ethereum chain, Burrow is designed around the Tendermint consensus algorithm (See Chapter 7, Achieving Consensus). This means there are no miners and no mining to be done on Burrow-based projects.

Second, Hyperledger Burrow is permissioned—the...