What are the different kinds of blockchain?

It’s important to remember that the word blockchain doesn’t describe any single database or network. Rather, it’s a type of technology and there are different kinds of blockchains that work in different ways.

A public blockchain like Bitcoin, allows anyone to join the network and access the distributed ledger.

A private blockchain is a closed network. It still uses some decentralization and a peer-to-peer system, but overall this kind is controlled by a single entity, and access is restricted to a defined network.

A hybrid blockchain is a combination of a public and private blockchain. This kind of blockchain allows an entity to distribute a ledger with some publicly accessible data but also restricts access to more sensitive data within the network.

A consortium blockchain has similarities with a private blockchain only. This type of ledger is controlled by multiple entities rather than a single one.