> 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.md).

# Proof of Contribution Categories

There are different levels of Proof of Contribution based on the type of supply.

* Computation PoC
* Delegate PoC
* Aggregate PoC
* Data Center PoC
* Service Delivery PoC