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Index
Cover
Title Page
Copyright Page
Dedication
About the Authors
About the Contributors
Contents at a Glance
Contents
Acknowledgments
Introduction
CHAPTER 1 Introduction to Blockchain
Blockchain: An Information Technology
A Distributed Trusted Information Technology
Implementation Trends
Trust: The Byzantine Generals Problem
The Byzantine Generals Problem Explained: Why Trust Is So Important
Byzantine Fault Tolerance in Use Today: Why Airplanes Are Safe
Satoshi Nakamoto’s Blockchain Breakthrough
Satoshi Nakamoto: The Man, the Myth, the Mystery
Satoshi Nakamoto: Timing Is Everything
Blockchain: Underpinning of Cryptocurrency
Types of Blockchain
Public Blockchains
Consortium Blockchains
Private Blockchains
Comparing Blockchains
Blockchain Implementations
Bitcoin
Namecoin
Ripple
Ethereum
Blockchain Collaborative Implementations
Hyperledger
Corda
Blockchain in Practical Use Today
Blockchain in the Financial Technology Space
Blockchain in the Sharing Economy
Blockchain and Real Estate
Blockchain and Identity
Blockchain and the Practice of Law
Blockchain Decentralized File Storage
Decentralized Autonomous Organizations
Blockchain and Cloud Computing
Blockchain Gambling and Betting
Summary
CHAPTER 2 Business Use Cases
Currency and Tokens
Cryptocurrency
Digital Tokens
Financial Services Use Cases
Know Your Customer (KYC) Use Case
Asset Management Settlement Use Case
Insurance Claims Processing Use Case
Trade Finance (Supply Chain) Use Case
Global Payments Use Case
Smart Property
Transferring Ownership of Smart Property
Using Smart Property as Collateral
Smart Contracts on the Blockchain
The Trust Problem
Blockchain Details
Blockchain IoT Protocol Projects
Summary
CHAPTER 3 Technology Use Cases
Web Versions 1 and 2
Web 3.0
Distributed Storage Systems
InterPlanetary File System
Swarm
Storj
Distributed Computation
Golem
Zennet
Decentralized Communications
Existing Decentralized Communications
Whisper
Summary
CHAPTER 4 Legal and Governance Use Cases
Blockchain Changes the Legal Landscape
Cryptocurrencies as Legal Tender
Blockchain and Privacy Laws
Legal Ramifications of Blockchain Records
The Beginning of Autonomous Law: Smart Contract
Smart Contract Evolution
Smart Contract Components
Smart Contract Benefits
Smart Contract Challenges
Smart Contract Risks
Smart Contract Legal Challenges
Blockchain as Evidence and Digital Signature
Smart Contract Design Example
Is an Advertising Payment Application a Blockchain Fit?
Defining Contract Data Structures
Smart Contract Events
Smart Contract Functions
Smart Contracts in Practice
Decentralized Autonomous Organizations
DAO and Jurisdiction
DAO Service-Level Liability
DAO Liability for Contract Breach
DAO and Intellectual Property
DAO and Who or What Is Responsible
DAO Compliance with Financial Services Regulation
The DAO and Exiting a Contract
DAO Data as Property
DAO and Due Diligence
Summary
CHAPTER 5 Technology on Ethereum
Ethereum Accounts
Ether the Cryptocurrency
Obtaining Ether
Mining in Ethereum
Ethereum Work
Transactions
Network Fuel (Gas)
Messages
The Ethereum Block
State Transition Function (STF)
Code Execution
Turing Complete
Scalability
Infrastructure: Storage and Communication
Decentralized Applications
Profile of a Dapp
Decentralized Autonomous Organizations
Summary
CHAPTER 6 Fast-Track Application Tutorial
Introducing Solidity
Solidity Basics
Solidity Functions and Parameters
Layout of Storage
Run Ethereum Dapps in Your Browser
Installing MetaMask
Developing a Contract Using MetaMask
Remix/Browser Solidity
Develop a Simple Smart Contract
Deploy the Smart Contract
Validate the Smart Contract
Next Step: Try Truffle
Summary
CHAPTER 7 Ethereum Application Best Practices
Ethereum Blockchain Development
Setting Up the Development Environment for Truffle
Set Up a Truffle Project
Truffle Directory Structure
Ethereum Blockchain Development: Best Practices
Blockchain Technologies
Solidity Basics Continued
Calling Contracts from Contracts
Handling Events
Smart Contract Design
Modules and Interfaces
Security and Roles
Single Contract Design
Linked Contracts
User-Specific Contracts
Handling Persistent Contract Addresses
Halting a Contract
Smart Contract Life Cycle: Migration
Smart Contract Interaction with Users and Enterprise Applications
Debugging Your Smart Contract
Debugging Using Remix
Debugging Using Events
Smart Contract Validation
Types of Tests
Dry Run Using Private Nets
Autopsy of a Wallet Bug
The Future
Summary
CHAPTER 8 Private Blockchain Platforms and Use Cases
Categories of Blockchain
Private Blockchain Use Cases
Private Blockchain Technology
AlphaPoint Distributed Ledger Platform
Chain Core
Corda
Domus Tower
The Elements Project
HydraChain
Hyperledger
Interbit
Monax
MultiChain
Openchain
Quorum
Stellar
Symbiont Assembly
Summary
CHAPTER 9 Challenges
Blockchain Governance Challenges
Bitcoin Blocksize Debate
The Ethereum DAO Fork
Ethereum’s Move to PoS and Scaling Challenges
Blockchain Technical Challenges
Bugs in the Core Code
Denial-of-Service Attacks
Security in Smart Contracts
Scaling
Sharding
Summary
CHAPTER 10 Sample Application: Blockchain and Betting
What Is a Dapp?
Introduction to Lotteries, Betting, and Gambling on the Blockchain
Setting Up a Development Environment
Syncing an Ethereum Node
Creating and Configuring a Private Development Chain
Creating a Killable Contract
Compiling the Contract
Deploying a Contract
Contract Debugging and Interaction
Defining Data Structures
Enumerables
Storage Variables
Events
Functions
Creating a Game
Bidding
Scoring Games and Payouts
Withdrawing
Reading Games
Reading Bids
Summary
CHAPTER 11 Deploying the Sample Application: Blockchain and Betting
Deploying Full Contract
Deploying to the Mainnet
Seeding Data
Front-End User Interface
Pages in the User Interface
Displaying Games
Bet Page Markup
Displaying Game Information
Displaying Open Bids
Displaying Bets
Placing Bids/Bets
Scoring Games
Withdrawing Money
Deploying to AWS
Summary
Index
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