# Listing Collections

Blank Rasa automatically lists both ERC721 and ERC1155 NFTs when they are deployed. You can make sure your NFT collection will be fully compatible with Blank Rasa by following this checklist:

* [ ] NFT contract is deployed on [Canto mainnet](https://docs.canto.io/evm-development/quickstart-guide#mainnet) (chain ID 7700)
* [ ] NFT contract implements [ERC721 ](https://eips.ethereum.org/EIPS/eip-721)or [ERC1155 ](https://eips.ethereum.org/EIPS/eip-1155)correctly (per [ERC165](https://eips.ethereum.org/EIPS/eip-165))
* [ ] Metadata conforms to the [OpenSea Metadata Standard](https://docs.opensea.io/docs/metadata-standards)
* [ ] (Recommended) NFT contract implements [ERC2981](https://eips.ethereum.org/EIPS/eip-2981) for royalties

## Media Types

All NFTs should provide an `image` URL in their metadata. Supported image formats include JPG, GIF, and PNG.

Additionally, multi-media NFTs consisting of audio, video, or other content should provide an `animation_url`. Supported formats include HTML, MP3, and MP4.

## Collection Verification

[Verifying a collection](https://www.blankrasa.com/verify-collection) allows you to edit how it appears on Blank Rasa. This includes setting the collection's name and symbol as shown site-wide, as well as adding website and Twitter URLs, a description, and/or a custom header image to the collection's homepage.

Following verification, some collections may also be manually marked with a check to signify they are genuine.

<figure><img src="/files/CFqwyKMXePome28VTGCX" alt=""><figcaption></figcaption></figure>

To verify a collection, follow these steps:

### 1. Navigate to [**blankrasa.com/verify-collection**](https://www.blankrasa.com/verify-collection)

### 2. Enter the NFT contract address and click "Proceed"

### 3. Modify the collection's display settings as desired and click "Proceed to final step"

### 4. Enter your email address and click "Submit Request"

### 4. Sign the message in the Web3 wallet *that deployed the collection*

Only the NFT contract's deployer can verify a collection.


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