IntroductionA distributed system with a decentralized consensus referred to as a decentralized state machine or generally, a blockchain. To achieve the consensus in a decentralized manner, participants have to be trustworthy with some credential-basis method or a do or die system. Also, being able to tell it is a decentralized consensus, it has to be accessible to whoever wants to participate and contribute. Not every blockchain has a decentralized consensus participation. They can whitelist ...