# 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="https://379868346-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQqLBDnAaiPWs2JHCPWOk%2Fuploads%2Fkzw0ifAvVb4NYh2TvYdx%2FMessina.one%20NFT%20Standard.jpg?alt=media&#x26;token=1d6f515c-581d-4dfa-8824-5a8722d60458" 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="https://379868346-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQqLBDnAaiPWs2JHCPWOk%2Fuploads%2FzeLQK0qdvpvTZPHXbt9k%2FNon-Messina.one%20NFTs-3.jpg?alt=media&#x26;token=7a60cbcf-d04e-4a2e-9f30-2118526e7c02" alt=""><figcaption></figcaption></figure>