Make sure the bitcoin is managed by an extremely large computer system. Bitcoin is created by a community of people who are able to participate in this network. They build computer systems and "dig" Bitcoin. This network can handle transactions and create their own billing system. On the world, people use software built from algorithms to create Bitcoin. Algorithms are always visible publicly, so anyone can test them.
In conclusion, crypto is pegged with a computer, All of the aspects in the cryptocurrency are using the computer as the primary tool to create every protocol and development. But in fact, everything needs the computer. Even the bitcoin network has built from so many computers around the world that interact one to each other.