I know this thraed probably written by PR person, but there are some serious mistake that i must point.
Anyone can become a blockchain node provider in the Bitcoin network. All you need to do is to download and install software from the official Bitcoin website.
There's no thing such as official Bitcoin website.
Additionally, the Bitcoin network contains cryptocurrency nodes that operate through hidden protocols such as Tor along with the implementations of crypto nodes in various programming languages. Nbitcoin implementation is written in C#), btcd is written in Go, bitcoind in C++, and bcoin in Node.js.
NBitcoin is just C# library which doesn't have feature to run full node.
bitcoind actually is name on daemon program which is part of Bitcin Core.
Moreover, there are hardware cryptocurrencies nodes such as Casa, Lux Node, myNode, Lightning In A Box – the devices that only process transactions on the Bitcoin network.
Using term "only" isn't accurate since company behind those hardware advertise their hardware can be used for various purpose.