Part I. The technology: Blockchains, bitcoin, and decentralized computing platforms -- Characteristics of blockchains -- Part II. Blockchains, finance, and contracts: Digital currencies and decentralized payment systems -- Smart contracts as legal contracts -- Smart securities and derivatives -- Part III. Blockchains and information systems: Tamper-resistant, certified, and authenticated data -- Resilient and tamper-resistant information systems -- Part IV. Organizations and automation: The future of organizations -- Decentralized autonomous organizations -- Blockchain of things -- Part V. Regulating decentralized, blockchain-based systems: Modes of regulation -- Code as law