A blockchain consensus mechanism is a set of rules or protocols that all participants in a blockchain network must follow to agree on the validity of transactions. It ensures that all nodes in the network reach a consensus or agreement on the state of the blockchain ledger. The most common consensus mechanisms in blockchain technology include Proof of Work (PoW), Proof of Stake (PoS), Delegated Proof of Stake (DPoS), and Practical Byzantine Fault Tolerance (PBFT). These mechanisms help maintain the security, immutability, and integrity of the blockchain network.
