> For the complete documentation index, see [llms.txt](https://ninja-squad.gitbook.io/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ninja-squad.gitbook.io/whitepaper/usdnst-fuel-of-the-ecosystem/bridging.md).

# Bridging

For users who have manually purchased $NST on the Ethereum network and wish to transfer their funds to Arbitrum, we offer a convenient solution through our portal token bridge. By utilizing the portal token bridge, users can securely transfer their $NST from Ethereum to Arbitrum One, taking advantage of the enhanced scalability and lower transaction fees offered by the Arbitrum network.

{% hint style="info" %}
Portal Link: <https://portalbridge.com/advanced-tools/#/transfer?sourceChain=ethereum&targetChain=arbitrum>
{% endhint %}