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Preface Quick Glossary 1£®What Is Ethereum? Compared to Bitcoin Components ofa Blockchain The Birth of Ethereum Ethereum's Four Stages of Development Ethereum£º A General-Purpose Blockchain Ethereum's Components Further Reading Ethereum and Turing Completeness Turing Completeness as a ¡°Feature¡± Implications of Turing Completeness From General-Purpose Blockchains to Decentralized Applications £¨DApps£© The Third Age ofthe Internet Ethereum's Development Culture Why Learn Ethereuml What This Book Will Teach You 2£®Ethereum Basics Ether Currency Units Choosing an Ethereum Wallet Control and Responsibility Getting Started with MetaMask Creating a Wallet Switching Networks Getting Some Test Ether Sending Ether from MetaMask Exploring the Transaction History ofan Address Introducing the World Computer Externally Owned Accounts £¨EOAs£© and Contracts A Simple Contract£º A Test Ether Faucet Compiling the Faucet Contract Creating the Contract on the Blockchain Interacting with the Contract Viewing the Contract Address in a Block Explorer Funding the Contract Withdrawing from Our Contract Conclusions 3£®Ethereum Clients Ethereum Networks Should I Run a Full Node? Full Node Advantages and Disadvantages Public Testnet Advantages and Disadvantages Local Blockchain Simulation Advantages and Disadvantages Running an Ethereum Client Hardware Requirements for a Full Node Software Requirements for Building and Running a Client £¨Node£© Parity Go-Ethereum£¨Geth£© The First Synchronization of Ethereum-Based Blockchains Running Geth or Parity The JSON-RPC Interface Remote Ethereum Clients Mobile Smartphone£© Wallets Browser Wallets Conclusions ¡­¡­ 4£®Cryptography 5£®Wallets 6£®Transactions 7£®Smart Contracts and Solidity 8£®Smart Contracts and Vyper 9£®Smart Contract Security 10£®Tokens 11£®Oracles 12£®Decentralized Applications DApps£© 13£®The Ethereum VirtuaIMachine 14£®Consensus A£®Ethereum Fork History B£®Ethereum Standards C£®Ethereum EVM Opcodes and Gas Consumption D£®Development Tools£¬ Frameworks£¬ and Libraries E£®web3£®js Tutorial F£®Short Links Reference Index