https://ipfs.io/ proposed replacement to HTTP for web3 world
uses IPLD which is it’s data model?
IPLD is the data model of the content-addressable web. It allows us to treat all hash-linked data structures as subsets of a unified information space, unifying all data models that link data with hashes as instances of IPLD. A data model for interoperable protocols.
Okay so IPLD is one of the technologies (common namespace for all content-addressable things, basically hashes) underpinning Filecoin which is an actual distributed storage network.