This book is a continuation and deepening of Sovereign Blockchain 1.0. It mainly includes three views: 1) Blockchain is a super public product based on digital civilization. 2) The Internet is an advanced level of industrial civilization, the core of which is connection; blockchain is an important symbol of digital civilization, the essence of which is reconstruction. 3) Digital currency will trigger a comprehensive change in the economic field, and digital identity will reconstruct the governance model in the social field, thereby changing the order of civilization. This book is not only a popular science book based on blockchain thinking, theory and application research, but also a scholarly work on the technical and philosophical issues of governance and the future. By reading Sovereign Blockchain 2.0, policymakers can quickly understand the basic knowledge and frontier dynamics of science and technology; science and technology workers can grasp the general trend, seize opportunities, face problems and difficulties, aim at the world's science and technology frontier and lead the direction of science and technology development; experts and scholars in law and legal fields can see new ideas, concepts and models of data governance; social science researchers can discover data sociology and data philosophy issues.