# Become a Validator

### **What is a validator?** <a href="#what-is-a-validator" id="what-is-a-validator"></a>

Parex Chain is run by a Proof of Asset-Based Consensus (PoABC) mechanism, which is primarily managed by two key roles:

* the Validator, who is a critical part of the chain. The validators create and validate blocks in turns.
* the Delegator, who allocates their PRX to the validator's pool in order to participate in the governance of the chain and earn reward.

In Parex Chain, there can be unlimited of block-creating validators.&#x20;

### Minimum System Requirements

| Parameter | Value  |
| --------- | ------ |
| RAM       | 16GB   |
| CPU       | 8 CORE |
| SSD       | 1TB    |

{% hint style="info" %}
To run the Parex Chain validator node, you must have Linux based operating system (ubuntu, centos etc...) on your machine or server. The minimum amount required for a validator to join the network is PRX 77,000.
{% endhint %}


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