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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

Keys and addresses


Bitcoin, being a purely digital currency, can be owned by people by keeping or storing it in files or in a Bitcoin Wallet. Addresses are used to transfer Bitcoins from one wallet to another, and keys are used to secure a transaction.

Keys in Bitcoins are used in pairs. One is a public key, and the other is a private key. The private key is to be kept securely, since it gives you control over a wallet. The keys are stored and controlled by a Bitcoin wallet.

Addresses are alphanumeric strings that are shared for sending or receiving Bitcoins from one wallet to another. The addresses are mostly encoded as Base58Check, which uses a Base58 number for address transcription. A Bitcoin address is also encoded in a QR code for quick transactions and sharing.

Currency units

Bitcoin has a widely used metric system of denominations that are used as units of Bitcoins. The smallest denomination of Bitcoin is called a Satoshi, after the name of its creator. The following table shows the...

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