BigChainDB

BigChainDB allows you to deploy your own permissioned or permissionless decentralized database. It uses the blockchain data structure along with various other database-specific data structures. BigChainDB, at the time of writing this, is still under development, so many things are not clear yet.

It also provides many other features, such as rich permissions, querying, linear scaling, and native support for multi-assets and the federation consensus protocol.