> For the complete documentation index, see [llms.txt](https://azen-protocol.gitbook.io/azen-gitbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://azen-protocol.gitbook.io/azen-gitbook/poc-tokenomics/proof-of-contribution-poc/proof-of-contribution-categories/data-center-poc.md).

# Data Center PoC

**Definition**: 

Evaluates the contribution of all nodes hosted in data centers.

**Formula:**

$$
P\_D C=∑P\_C×C\_D C
$$

Where:

$$∑P\_C$$ = Total PoC from all nodes in the data center. 

$$C\_DC$$ = Data Center coefficient.