This article describes the function of a “node” in the bitcoin blockchain network. A “node” is simply a computer running bitcoin’s ingenious core software program. When activated, each node automatically connects with several other nodes (called peers).

This article discusses the history of bitcoin and the Blockchain and is not investment advice. In the late 1980s, researchers began using cryptography to build digital currencies. The earliest forms of digital currency were usually backed by a national fiat currency or a precious metal.