https://hyperledger-fabric.readthedocs.io/en/release-1.2/acc... there are several emerging approaches to deliver that level of control over identity and artifacts. Each identity you provide to apps will have a root folder where you store the smart contract which maintains your sharing preferences and permissions. It's early days, but progress is being made, and it seems as if there will continue to be strong forces of co-opetition across the web3/indy web, and federated multi-verse. It will be interesting to see what kind of standards ultimately emerge and which community leads that charge.