This is not true. You are always trusting someone. <-- that is a really really big period. In this case you are trusting the authors of the code which this proc

This is not true. You are always trusting someone. <-- that is a really really big period. In this case you are trusting the authors of the code which this process runs on. The machines that this code runs on. And last but not least the fact that no one has control over majority of the nodes. You are always trusting someone or something.