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Have you ever heard about Datum ?
Datum is a decentralized and distributed high performance NOSQL database backed by a blockchain ledger. This technology allows anyone to backup structured data like social network data, data from wearables, smart home and other IOT devices in a secure, private and anonymous manner. Datum provides a marketplace where users can share or sell data on their own terms.
Datum is more secure than centralize data storage . Don't let anyone control or sell your data . Hurry up , join datum now :
https://datum.org/assets/Datum-WhitePaper.pdf
https://datum.org/