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description: Non-custodial interoperability
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# Crosschain Support

While Base is and always will be, the home of the BaseBrawl, the fundamental principle of BaseBrawl is the composability for existing NFT communities to interact with the protocol. With that in mind,  BaseBrawl, will support "Crosschain Attestations" from Ethereum to Base.\
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BaseBrawl Crosschain Attestation System utilizes [Axelar](https://www.axelar.network/) crosschain messaging to attest NFT ownership from a source network (Ethereum) to Base. This means that if your favourite NFT collection is natively issued on Ethereum (Pudgy Penguins, Bored Apes, etc), you are able to post an `attestation of ownership`to Base from Ethereum to utilize your NFT (Brawler) in BaseBrawl  without ever sacrificing ANY custody of your beloved JPEG. No transfers, no allowances, a true non-custodial solution to crosschain NFT composability.



{% hint style="info" %}
More information on Attestations can be found in the [attestations](../attestations "mention") section of the documentation.&#x20;
{% endhint %}







