(The latter means that the user is anonymously active, but transactions could be calculated backwards to the end user; therefore, they are not 100% anonymous.)
The second possible type is a consortium blockchain, which only uses specific crossover points for validation. As a result of this only participants of the “consortium” have access to the blockchain, this guarantees a faster process, and the creators can decide if participants are public or anonymous. This form will be very interesting for business adaptions, which we will discuss and explain at a later point of this book in greater detail.
The third type is an entirely private blockchain; here transactions are validated by a certain amount of validators. The creator can decide who can add information or see it. This results in a very fast processing time, and the creator usually knows each validator.
You may question yourself, what is a blockchain or how can I imagine it. As the name suggests, the blockchain is a linkage of several blocks. The speciality is that each block is generating code, based on the content it carries, which is saved in the consecutive block with other new information. But let’s look at an example, which might be easier to understand:
