Acknowledgments

This textbook was produced by DataField.Dev using AI-assisted authoring. The content was written, structured, and revised with the aid of large language models, with human oversight for accuracy, balance, and pedagogical quality. Every technical claim has been verified against primary sources, and every code example has been tested with current library versions.

We stand on the shoulders of those who built the foundations this book rests on. Arvind Narayanan, Joseph Bonneau, Edward Felten, Andrew Miller, and Steven Goldfeder authored Bitcoin and Cryptocurrency Technologies — the Princeton textbook that demonstrated it was possible to write about blockchain with academic rigor and intellectual honesty. Their work set the standard we aspire to meet. Andreas M. Antonopoulos wrote Mastering Bitcoin and co-authored Mastering Ethereum with Gavin Wood, producing technical references of exceptional depth and clarity that have educated a generation of blockchain developers. Gavin Wood's Ethereum Yellow Paper and Vitalik Buterin's original Ethereum whitepaper remain essential primary sources. Campbell Harvey, Ashwin Ramachandran, and Joey Santoro's DeFi and the Future of Finance provided a rigorous introduction to decentralized finance at a time when most DeFi content was marketing material.

The open-source community makes a book like this possible. The developers and maintainers of Bitcoin Core, go-ethereum, Hardhat, Foundry, OpenZeppelin, Solidity, ethers.js, web3.py, and the countless libraries, tools, and frameworks referenced throughout this text created the ecosystem this book documents. The Ethereum Foundation, the Bitcoin developer community, and the broader open-source movement deserve recognition for building in public and sharing freely.

We also acknowledge the researchers, journalists, and analysts who do the difficult work of investigating failures. The forensic reporting on Mt. Gox, Terra/Luna, and FTX — by journalists, prosecutors, and independent analysts — provides the evidentiary foundation for the failure case studies in this book. Understanding what went wrong is as important as understanding what works, and that understanding depends on people willing to investigate and document uncomfortable truths.

Finally, this book is released under the Creative Commons Attribution-ShareAlike 4.0 International License because we believe educational materials should be free and open. If this book helps you understand blockchain technology — whether you end up building on it, regulating it, investing in it, or deciding it is not for you — then it has served its purpose.