Consensus
PoS, nodes and the Consensus Mechanism

Proof of Stake

Entities, companies or individuals are chosen as validators on the Klever Blockchain, with the task of verifying transactions and mining blocks based on the amount of assets they hold. A user must provide some proof of holding a certain minimum amount of KLV in order to be promoted to validator, and to be able to operate as a Masternode.

Masternode

A Masternode is essentially a full node on the network that receives incentives and rewards to operate and perform actions on the blockchain. As the Masternode status is obtained by KLV staking, a Masternode owner also participates in the KLV staking pool and there will be a limit of 500 eligible Masternodes seats, which can all compete for a spot among the top 21 block producers.

Pratical Byzantine Fault Tolerance ( PBFT )

The PBFT algorithm consists of a three-phased protocol: Pre-Prepare, Prepare, and Commit. Together, they form the core of the PBFT consensus algorithm.
Pre-Prepare: The primary node is responsible for verifying the requests and generating corresponding pre-prepare messages. Then, the Primary node will broadcast pre-prepare messages to all Replica nodes. After receiving the messages, Replica nodes will verify the legitimacy of those pre-prepare messages and then broadcast a corresponding prepare message. Prepare: Gathering prepare messages. After a certain node gathers 2f+1 prepare messages, it will announce that it is ready for block submission and start to broadcast commit messages; Commit: Gathering commit messages. After a certain node gathers 2f+1 commit messages, it will process the native requests cached locally and make corresponding changes to the system state.
f is the number of nodes in the consensus.
PBFT process
If you want more details about the PBFT consensus algorithm, check this link. This algorithm will also be used as a way to evaluate and grant bonuses to masternodes.
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