What is Public Blockchain?

A public blockchain is a decentralized system that is designed for public use and is permissionless, meaning that it is possible for anyone to join, make use of, or contribute to network development. Public blockchain protocols employ cryptocurrencies, and are generally considered to encourage censorship resistance. These blockchains are designed to be borderless, open, neutral, and easily accesible. Public blockchain systems stand in contrast to private blockchain networks that are centralized and closed. Private blockchain network participants typically need special access or permissions to use the platform.