The preceding steps uncovered the relation between trust, integrity, purely distributed peer-to-peer systems, and blockchain. As a result, we have gained a good understanding of what blockchain is, why it is needed, and what problem it solves. However, we do not know yet how blockchain works internally. This step gives us a first impression of how blockchain works by explaining the general application scenario that guides us through the succeeding steps. It also highlights the major tasks in designing a blockchain for managing ownership and provides an overview of its major concepts. This step serves as a starting point for the following 12 steps, which discuss in great detail the concepts and technologies that make up blockchain.