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What is a validator

Validator is a participant in a blockchain network responsible for verifying transactions and creating new blocks.

In networks that use the Proof of Stake consensus mechanism, validators replace miners.

Validator explained simply​

A validator is a node that confirms transactions and adds new blocks to the blockchain.

How validators work​

Validators:

  1. receive transactions from the mempool
  2. verify their validity
  3. create a new block
  4. add the block to the blockchain

For this work, validators receive rewards.

How to become a validator​

To become a validator, participants usually need to:

  • stake cryptocurrency
  • run a node
  • maintain reliable network operation

Example of validators​

In the Ethereum network, thousands of validators participate in verifying transactions and producing blocks.

Where validators are used​

Validators are used in blockchain networks that rely on the Proof of Stake mechanism.

FAQ​

What does a validator do?​

Validators verify transactions and create new blocks.

How do validators earn rewards?​

Validators earn block rewards and transaction fees included in the blocks they produce.

How is a validator different from a miner?​

Miners are used in Proof of Work systems, while validators are used in Proof of Stake networks.