What is Polkadot?
Polkadot is an open-source project developed by the Web3 Foundation. It is a common protocol that allows blockchain networks to work together. The intention is to create a single network, configured by combining multiple blockchains. Polkadot is designed according to a paradigm in which blockchains can work together on the Internet, which provides new benefits of using blockchains. Going into detail, Polkadot is a system that supports interaction between very different chains with different properties, including encrypted authority chains suitable for internal corporate networks (as long as they validate certain specifications). For example, a bank could verify a transaction on its private network and then publish it on the Etheruem network.