# What is a Validator

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A **validator** is a program that allows users to interact with the blockchain network. It is also where data is stored and smart contracts are executed. Anyone can run a **Zeno validator**, but in order to earn block rewards, the validator must have nodes staked on it. Only validators with staked nodes are eligible to receive block rewards and the gas fees consumed by users.

If you have high-quality server equipment, you can run a validator and charge a service fee ranging from **1% to 10%** of the block rewards to node users who are unable to run their own validator. Additionally, if your validator runs with sufficient stability, you can apply to have it listed on our official page, where it will be available for node users to select.


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