Bitcoin is the first digital currency in human history that does not require a central clearing authority. The technological implication of this invention is profound: it opens the possibility of building a completely distributed financial system where no centralized authorities are needed to conduct financial transactions. This book is the ultimate answer to the often asked, but even-more-often unsatisfactorily answered question: HOW DOES BITCOIN WORK? This is the first book that dissects the original Bitcoin source code written by Satoshi Nakamoto. It opens the Bitcoin black-box, examines all its parts, and shows you all the details you ever need to know about the Bitcoin system. The whole book has 10 chapters. This version you are about to purchase contains the first 4 chapters.