Tardigrade from Storj is the closest thing in production to solve decentralized data storage: https://tardigrade.io/ https://tardigrade.io/ The user pays the s

Tardigrade from Storj is the closest thing in production to solve decentralized data storage: https://tardigrade.io/ https://tardigrade.io/ The user pays the storage cost upfront. However it is suitable only for file like content, not mutable content like databases AFAIK.