A network validator is a participant in a blockchain that helps maintain the integrity and security of the network. Validators confirm transactions and add them to the blockchain. They play a crucial role in consensus mechanisms, especially in proof-of-stake systems.In proof-of-stake, validators are chosen to create new blocks based on the number of coins they hold and are willing to ‘stake’ as collateral. Their responsibility is to ensure that the transactions are valid, preventing double spending and fraud.By validating transactions, these individuals help secure the network and earn rewards, usually in the form of new coins or transaction fees. The effectiveness of validators is essential for a blockchain’s operation, as they help maintain trust and reliability among users.A well-functioning group of validators reduces the risk of attacks and ensures that the system remains decentralized. These validators can be individuals or organizations, and their performance can significantly impact the overall health and efficiency of the blockchain.