Filecoin is solving a real consumer problem (needing backup storage but having empty local capacity,) using blockchain protocols!
https://filecoin.io/blog/filecoin-proof-system/
Blockchain problems can sometimes be replaced with simpler tech, but this seems like a great match.
miniblog.
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If you pay users to store copies of your data, how do you ensure that they don't claim they have extra copies? An interesting problem! Public Incompressible Encoding for e.g. FileCoin: https://hackingdistributed.com/2018/08/06/PIEs/
Related to IPFS, filecoin: https://filecoin.io/ is a beautiful idea. Pay for remote backup storage by renting your storage!
