> For the complete documentation index, see [llms.txt](https://messinaone.gitbook.io/messina/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://messinaone.gitbook.io/messina/bridge/nft-bridge.md).

# NFT Bridge

The [Messina.one NFT Bridge](https://messina.one/nft_bridge) runs on the same messaging layers our token bridge uses. Currently, the NFT bridge only functions between Cronos and Polygon. 

## How the Messina.one NFT Bridge works 

**Messina.one's NFT Standard** 

Messina.one has developed a new NFT standard that ensures newly minted NFTs only exist on 1 chain at any given time. NFTs that adopt the Messina.one's standard will be burned at the source chain and minted on the destination chain when bridged through the Messina.one bridge.

<figure><img src="/files/3UQHJ3NUoORSDhT7aF5n" alt=""><figcaption></figcaption></figure>

**Non-Messina.one NFTs**&#x20;

When non-Messina.one NFTs are bridged, there will be one wrapped copy of the NFT at any given time.&#x20;

NFTs that are preexisting or those that do not adopt the Messina.one NFT standard will first be locked at the source chain and a wrapped copy of it will be minted at the destination chain.&#x20;

Subsequently, if the wrapped NFT is bridged to other chains, that wrapped NFT will be burned and re-minted on the new destination chain. The original NFT will still remain locked in the Smart Contract on the chain it was originally bridged from.&#x20;

Whenever the wrapped NFT is bridged back to the original source chain, the wrapped NFT will be burned and the original NFT will be unlocked.

<figure><img src="/files/5hGHV9s5dpkTdNLySX5O" alt=""><figcaption></figcaption></figure>