Consensus Mechanism
Also known as: Consensus Protocol, Consensus Algorithm, Agreement Protocol, Byzantine Agreement
A consensus mechanism is a method used by distributed systems and blockchains to agree on the same data without a central authority.
A consensus mechanism is a process used in distributed systems, especially blockchains, to reach agreement on the state of the network without relying on a central authority. These mechanisms ensure all participants agree on the same version of data, which is crucial for security and decentralization.
Common types include Proof of Work (PoW), where participants solve cryptographic puzzles; Proof of Stake (PoS), which selects validators based on staked tokens; and others like Delegated Proof of Stake (DPoS), Proof of Authority (PoA), and PBFT.
These systems solve the Byzantine Generals' Problem, allowing reliable consensus even in environments with faulty or malicious nodes.