# IPFS Storage & On-Chain Provenance Every dataset uploaded to Cluster is pinned to IPFS via Pinata. IPFS assigns a content-addressed identifier (CID) based on the hash of the file contents. This means: * The data is immutable - the same CID always resolves to the same content * The data is persistent - stored across the IPFS network, not dependent on a single server * The data is verifiable - anyone can confirm that a CID matches its content The CID is stored on-chain alongside the dataset's metadata, creating a permanent link between the on-chain ownership record and the off-chain data. --- # 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://cluster-protocol.gitbook.io/whitepaper/core-infrastructure/overview/tokenized-data-marketplace/ipfs-storage-and-on-chain-provenance.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.