> For the complete documentation index, see [llms.txt](https://sixnetwork.gitbook.io/nft-gen-2-tech-doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sixnetwork.gitbook.io/nft-gen-2-tech-doc/overview/nft-data-chain.md).

# NFT Data Chain

<figure><img src="https://1278751999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUOgAAChWM38m2FHlKkOf%2Fuploads%2FCzfRaVUneHJcys5m1brE%2FNFT%20Data%20Chain%20simple%20explain.png?alt=media&amp;token=a9cec6da-0d02-4346-a491-0828435b8bcc" alt=""><figcaption><p>How it works</p></figcaption></figure>

This diagram explains how the NFT Data chain will help manage mutable NFT metadata.