What are the 3 types of block chain?

There are three primary types of blockchain networks. The first is the public blockchain. This type of blockchain network is open to anyone, meaning there are no restrictions on participation.

A public, or permission-less, blockchain allows individuals to join the network and engage in activities such as mining, transaction verification, and smart contract execution without needing permission from a central authority. This decentralized nature makes public blockchains highly secure and transparent.

The second type of blockchain is the permissioned or private blockchain. Unlike public blockchains, permissioned blockchains are restricted to a specific group of individuals or organizations who have been granted access.

Permissioned blockchains are often used by businesses and organizations to create secure, private networks for transactions and data sharing. They offer a higher level of control and privacy than public blockchains, as only authorized participants can join and view the network's activities.

The third type of blockchain is the federated or consortium blockchain. This type of blockchain is similar to permissioned blockchains, but with a key difference: instead of being controlled by a single entity, federated blockchains are governed by a group of organizations or individuals who work together to maintain the network.