> For the complete documentation index, see [llms.txt](https://docs.fractalvisions.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fractalvisions.io/fveco/hub/cid.md).

# Custom C.I.D

How to use images pinned to Arweave or IPFS

<figure><img src="https://737872489-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEK7cRGHUjLaqgeBOou4m%2Fuploads%2FBnJhI6UbChDHbC8G9eVI%2FCuston%20CID.png?alt=media&amp;token=c04a27a0-7149-4beb-bbc5-57bfb8d62b81" alt=""><figcaption></figcaption></figure>

#### FV Deployment Docs

* FV custom metadata pinning

**Enter a custom CID from IPFS/ARWEAVE**

A CID (Content Identifier) is a unique fingerprint for a file stored on a decentralized network — it's generated from the file's content itself, so the same file always produces the same CID.

If you deploy a smart contract please send us the contract address or name of collection to add to the marketplace for listing.&#x20;

Then we can coordinate on posting about the project on social media. Take your time. Make art.