# Metadata ![](/files/-MhpQlEESgDhs_6L0ASU) \ All the metadata is stored on **IPFS** using our own API trough **Pinata**. \ Any change made to a CELL and Playground its stored as metadata, every action its recorded. \ This allow us to generate a timeline of changes made to your CELLS and Playground.\ Imagine a time-lapse of your own playground.\ \ During the first phase, Cells NFT metadata and content metadata are stored in our database and served thru our API. You can change them as many times as you want and hit the refresh button on OpenSea to update it! But soon™️ you will be able to lock your Cells and make them immutable forever. That means that it's metadata and all of it's contents will be stored on IPFS. When a Cell is locked, we'll pay a little gas to update the metadata URI on the Cells Contract, so it points to the metadata hosted on IPFS. Our contract is designed so this can be done only once per cell. And voilá, your Cell metadata and contents will be locked forever. Whether you decide to do it or not, it is your choice! \ \&#xNAN;*\*NOTE: Remember IPFS is a public network. Anyone has access to whatever you upload.* --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cells-nft.gitbook.io/cells/introduction/metadata.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.