> For the complete documentation index, see [llms.txt](https://docs.vebetterdao.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vebetterdao.org/vepassport/checks/proof-of-investment.md).

# Proof of investment

Ownership of a GM NFT with a **level above Earth** should be sufficient to prove personhood. The capital outlay to achieve these NFTs should be enough to discourage their usage in Sybil attacks and prove the investment deployed for better action to VeBetter.

{% hint style="warning" %}
The GM ownership is snapshotted at the beginning of each round to prevent potential attacks.
{% endhint %}