Validator

A validator is an entity in a blockchain network, particularly in Proof-of-Stake (PoS) systems, responsible for verifying transactions and adding new blocks to the blockchain. Validators are selected based on the amount of cryptocurrency they hold and are willing to "stake" as collateral. This staking process aligns the validator's incentives with the network's security, as they stand to lose their stake in case of malicious behavior. For web3 developers, understanding the role of validators is crucial when designing and interacting with PoS-based networks, as it impacts consensus mechanisms, network security, and transaction finality. Developers may also consider the requirements and implications of becoming a validator, such as hardware specifications, staking amounts, and potential rewards.