gitlab.com/aquachain/aquachain@v1.17.16-rc3.0.20221018032414-e3ddf1e1c055/Documentation/user-guide/Storage.md (about)

     1  # Storage
     2  
     3  Storing things on the blockchain is forever. It is best to avoid storing data on the blockchain unless you need to for example censorship resistance.
     4  
     5  Instead, store a hash as reference to a file hosted elsewhere.
     6  
     7  ## IPFS
     8  
     9  "InterPlanetary File System is a protocol and network designed to create a content-addressable, peer-to-peer method of storing and sharing hypermedia in a distributed file system."
    10  
    11  With IPFS you are able to upload a file, and retrieve it (from somewhere else) using the file's hash.
    12  
    13  Use the short IPFS "CID" on-chain, instead of storing the data directly on-chain.
    14  
    15  Then, host an IPFS node and your file will be online forever. Services exist that offer IPFS hosting, and some are free.
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