How do you register a network umbrella?

I'm curious, how exactly does one go about registering a network umbrella? Is there a specific process or set of requirements that need to be met? And what kind of information or documentation is typically required for such a registration? I'm asking because I'm not familiar with the term "network umbrella" in the context of cryptocurrency or finance, and I'm eager to learn more about it. Could you elaborate on the process and its significance in the field?