> For the complete documentation index, see [llms.txt](https://docs.gyro.win/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gyro.win/game/lotto-game/how-to-check-vrf-number.md).

# How to check VRF number?

Gyrowin Lottery Games are generated by the Chainlink VRF contract for transparency. Users will be able to verify this in the blockchain.

## Chainlink VRF Coordinator V2 contract

<mark style="color:green;">0xc587d9053cd1118f25F645F9E08BB98c9712A4EE</mark> (BSC)

{% hint style="info" %}
Chainlink: <https://docs.chain.link/vrf/v2/subscription/supported-networks#bnb-chain>
{% endhint %}

{% embed url="<https://youtu.be/BGYO5RBqsKE>" %}