According to Trustnodes the Ethereum network was the largest when it came to the number of nodes, and the blockchain dominated the industry in terms of size. However, the number started falling in 2019 currently being down by around 3,000 since the start of the year.
Sponsored by https://BitBlockBoom.com
Bitcoin is a cryptocurrency, a form of electronic cash. It is a decentralized digital currency without a central bank or single administrator that can be sent from user-to-user on the peer-to-peer bitcoin network without the need for intermediaries.