Decentralized storage IPFS
IPFS is a file-sharing system that can be leveraged to more efficiently store and share large files. It relies on cryptographic hashes that can easily be stored on a blockchain. Nonetheless, IPFS does not permit users to share files with selected parties. For connection with metadata, we are using IPFS URI.
A Uniform Resource Identifier, or URI, is used to specify a particular piece of content in a given context. The context is determined by the URI scheme (appended to the URI as a prefix, followed by ://). The URI scheme for IPFS is simply IPFS.
IPFS URIs are the canonical representation for an IPFS link since the IPFS scheme makes it clear and unambiguous that the CID (uniquely identify a piece of content) refers to content on IPFS and not some other system.
We are using an IPFS URI to link from smart contracts to any external data stored using IPFS, including any metadata that describes and contextualizes the token.
IPFS URIs are also the way to link from within a token's metadata to images and other assets stored on IPFS.
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