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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

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Product type Course
Published in Dec 2018
Publisher
ISBN-13 9781789954722
Length 564 pages
Edition 1st Edition
Languages
Concepts
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Authors (4):
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Paul Valencourt Paul Valencourt
Author Profile Icon Paul Valencourt
Paul Valencourt
Brenn Hill Brenn Hill
Author Profile Icon Brenn Hill
Brenn Hill
Narayan Prusty Narayan Prusty
Author Profile Icon Narayan Prusty
Narayan Prusty
Samanyu Chopra Samanyu Chopra
Author Profile Icon Samanyu Chopra
Samanyu Chopra
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Table of Contents (37) Chapters Close

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 Index

Components of Ethereum


Let's discuss some general components of Ethereum, its primary currency, network, and other details. This will help in understanding Ethereum in a much better way and also help us see how it is different to Bitcoin and why it has a huge community, currently making it the most important cryptocurrency and blockchain project, second only to the Bitcoin blockchain.

Ethereum accounts

Ethereum accounts play a prime role in the Ethereum blockchain. These accounts contain the wallet address as well as other details. There are two types of accounts: Externally Owned Accounts (EOA), which are controlled by private keys, and Contract Accounts, which are controlled by their contract code.

EOAs are similar to the accounts that are controlled with a private key in Bitcoin. Contract accounts have code associated with them, along with a private key. An externally owned account has an Ether balance and can send transactions, in the form of messages, from one account to another. On the...

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