Bitcoins can be accepted as payments using various techniques. Bitcoin is not recognized as a legal currency in many jurisdictions, but it is increasingly being accepted as a payment method by many online merchants and e-commerce websites. There are a number of ways in which buyers can pay the business that accepts bitcoins. For example, in an online shop, Bitcoin merchant solutions can be used, whereas in traditional, physical shops, point of sale terminals and other specialized hardware can be used. Customers can simply scan the QR code with the seller's payment URI in it and pay using their mobile devices. Bitcoin URIs allow users to make payments by simply clicking on links or scanning QR codes. Uniform Resource Identifier (URI) is basically a string that represents the transaction information. It is defined in BIP 21. The QR code can be displayed near...
Mastering Blockchain
By :
Mastering Blockchain
By:
Overview of this book
Publisher's Note: This edition from 2018 is outdated and does not cover the latest insights on consensus algorithms, Ethereum 2.0, tokenization, and enterprise blockchains. A new and updated edition of this book that includes all the newest developments and improvements in Blockchain including the above topics is now available.
A blockchain is a distributed ledger that is replicated across multiple nodes and enables immutable, transparent and cryptographically secure record-keeping of transactions. The blockchain technology is the backbone of cryptocurrencies, and it has applications in finance, government, media and almost all other industries. Mastering Blockchain, Second Edition has been thoroughly updated and revised to provide a detailed description of this leading technology and its implementation in the real world.
This book begins with the technical foundations of blockchain technology, teaching you the fundamentals of distributed systems, cryptography and how it keeps data secure. You will learn about the mechanisms behind cryptocurrencies and how to develop applications using Ethereum, a decentralized virtual machine. You will also explore different other blockchain solutions and get an introduction to business blockchain frameworks under Hyperledger, a collaborative effort for the advancement of blockchain technologies hosted by the Linux Foundation. You will also be shown how to implement blockchain solutions beyond currencies, Internet of Things with blockchain, blockchain scalability, and the future scope of this fascinating and powerful technology.
Table of Contents (21 chapters)
Preface
Free Chapter
Blockchain 101
Decentralization
Symmetric Cryptography
Public Key Cryptography
Introducing Bitcoin
Bitcoin Network and Payments
Bitcoin Clients and APIs
Alternative Coins
Smart Contracts
Ethereum 101
Further Ethereum
Ethereum Development Environment
Development Tools and Frameworks
Introducing Web3
Hyperledger
Alternative Blockchains
Blockchain – Outside of Currencies
Scalability and Other Challenges
Current Landscape and What's Next
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