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Blockchain Developer's Guide

You're reading from Blockchain Developer's Guide Develop smart applications with Blockchain technologies - Ethereum, JavaScript, Hyperledger Fabric, and Corda

Product type Course

Published in Dec 2018

Publisher

ISBN-13 9781789954722

Length 564 pages

Edition 1st Edition

Languages

JavaScript

Tools

Blockchain

Concepts

Blockchain

Authors (4):

Paul Valencourt

Brenn Hill

Narayan Prusty

Samanyu Chopra

View More author details

Table of Contents (37) Chapters

Title Page

Copyright

About Packt

Contributors

Preface

1. Blockchain 101 FREE CHAPTER

2. Components and Structure of Blockchain

3. Decentralization Versus Distributed Systems

4. Cryptography and Mechanics Behind Blockchain

5. Bitcoin

6. Altcoins

7. Achieving Consensus

8. Advanced Blockchain Concepts

9. Cryptocurrency Wallets

10. Alternate Blockchains

11. Hyperledger and Enterprise Blockchains

12. Ethereum 101

13. Solidity 101

14. Smart Contracts

15. Ethereum Accounts and Ether Tokens

16. Decentralized Applications

17. Mining

18. ICO 101

19. Creating Your Own Currency

20. Scalability and Other Challenges

21. Future of Blockchain

22. Understanding Decentralized Applications

23. Understanding How Ethereum Works

24. Writing Smart Contracts

25. Getting Started with web3.js

26. Building a Wallet Service

27. Building a Smart Contract Deployment Platform

28. Building a Betting App

29. Building Enterprise Level Smart Contracts

30. Building a Consortium Blockchain

1. Other Books You May Enjoy

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Index

What is Proof-of-Authority consensus?

PoA is a consensus mechanism for blockchain in which consensus is achieved by referring to a list of validators (referred to as authorities when they are linked to physical entities). Validators are a group of accounts/nodes that are allowed to participate in the consensus; they validate the transactions and blocks.

Unlike PoW or PoS, there is no mining mechanism involved. There are various types of PoA protocols, and they vary depending on how they actually work. Hyperledger and Ripple are based on PoA. Hyperledger is based on PBFT, whereas ripple uses an iterative process.

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Authors (4)

Brenn Hill

Brenn Hill

Brenn Hill is a senior software engineer who has worked with such clients as NASCAR, PGA Tour, Time Warner Cable, and many others. He has experience leading international teams on cannot fail engineering projects. He strives to work with business to ensure that tech projects achieve good ROI and solve key business problems. He has a master's degree in Information Science from UNC-CH and currently travels the world as a digital nomad.

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Paul Valencourt

Paul Valencourt

Paul Valencourt is CFO of BlockSimple Solutions. He currently helps people launch STOs and invest in cryptocurrency mining.

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Samanyu Chopra

Samanyu Chopra

Samanyu Chopra is a developer, entrepreneur, and Blockchain supporter with wide experience of conceptualizing, developing, and producing computer and mobile software's. He has been programming since the age of 11. He is proficient in programming languages such as JavaScript, Scala, C#, C++, Swift, and so on. He has a wide range of experience in developing for computers and mobiles. He has been a supporter of Bitcoin and blockchain since its early days and has been part of wide-ranging decentralized projects since a long time. You can write a tweet to him at @samdonly1.

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Narayan Prusty

Narayan Prusty

Narayan Prusty is a full-stack developer. He works as a consultant for various start-ups around the world. He has worked on various technologies and programming languages but is very passionate about JavaScript, WordPress, Ethereum, Solr, React, Cordova, MongoDB, and AWS. Apart from consulting for various start-ups, he also runs a blog titled QNimate and a video tutorial site titled QScutter, where he shares information about a lot of the technologies he works on.

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