# Contribution Rollup

**Contribution** **Rollup Mechanism**

To fully harness the benefits of blockchain technology—trustless, permissionless, and transparent—while maintaining a seamless user experience, we introduce a Contribution Reward Rollup mechanism for distributing token incentives across campaigns.

#### **Points-to-Token Conversion**

The primary source of community rewards comes from campaign participation, where data contributors complete tasks to earn points.\
Once a campaign concludes and all submissions are verified, contributors' earned points can be converted into **$PUBLIC** tokens.

This conversion occurs within the DataHub, where contributors claim their **$PUBLIC** tokens by burning (consuming) the corresponding number of points.

#### **Conversion Formula**

The number of tokens a contributor receives per point is calculated based on:

* **X**: Total campaign revenue (in USD)
* **W**: Total points distributed for the campaign
* **P**: **$PUBLIC** token price (in USD) at the end of the campaign
* **T**: Amount of **$PUBLIC** tokens per point

The formula is: 

<div align="left"><figure><img src="/files/fs65DiPiMzp1p7lcXfHY" alt="" width="191"><figcaption></figcaption></figure></div>

Or simply:

> **Each point = (Campaign Revenue ÷ Token Price) ÷ Total Points Issued**

***

#### **Dynamic Exchange Rate**

Because:

* Campaign revenue (**X**) varies,
* $PUBLIC token price (**P**) fluctuates with the market,
* Total campaign points issued (**W**) differs by campaign,

The point-to-token exchange rate is dynamic and changes over time.

This mechanism ensures a fair, transparent, and performance-based reward system where contributors are compensated proportionally for both their efforts and the campaign’s real-world economic value.


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