Private, semi-private, and public blockchains

Secondly, you must be aware that blockchains can take three different forms: public, private, or semi-private. Bitcoin and Ethereum are both public blockchains (also called permissionless blockchains), meaning that there is no restriction on who can become a node, who can use the service, and who can validate the transactions. They both benefit from a high degree of decentralization and do not require a supervisory body as the infrastructure, and their governance are self-organized. On the other hand, private and semi-private blockchains (also called permissioned blockchains) have a smaller degree of decentralization because only authenticated stakeholders can join the infrastructure. Therefore, they have a reduced number of nodes and miners compared to public blockchains. Their governance can be partially decentralized (we call such...