Bitcoin

The term decentralized means that something is widely distributed and does not have a single, centralized place or institution.  The technology and infrastructure that governs the production, supply and security of Bitcoin is not dependent on a centralized institution such as central banks or governments.

In this network, with the increase in the number of people, the network does not weaken, or the server does not become unavailable, because first of all, there is no centralized server and the files are located on people's computers all over the world.