Securing access to confidential data using a blockchain ledger

A non-transitory computer readable medium having instructions stored thereon that, when executed by a processor, cause the processor to secure access to confidential data, the securing comprising:

• receiving an update to access permissions from a first entity on behalf of a second entity, wherein at least a portion of data stored at a confidential data store is keyed with a hierarchical security parameter, the updated access permissions correspond to an update to the hierarchical security parameter, and the updated access permissions provide the second entity row level access to a secure relational data table stored at the confidential data store;
• calling a smart contract that validates the update;
• and
• upon consensus from a blockchain community, executing the update to the access permissions for the second entity, wherein the update is appended to a blockchain ledger that stores access permissions for the blockchain community, the blockchain community comprising a plurality of different organizations that share access to the confidential data store.

A system for securing access to confidential data using a blockchain ledger, the system comprising:

• a processor in communication with a storage device, wherein the processor is configured to execute instructions to:
• receive an update to access permissions from a first entity on behalf of a second entity, wherein at least a portion of data stored at a confidential data store is keyed with a hierarchical security parameter, the updated access permissions correspond to an update to the hierarchical security parameter, and the updated access permissions provide the second entity row level access to a secure relational data table stored at the confidential data store;
• call a smart contract that validates the update;
• and
• upon consensus from a blockchain community, execute the update to the access permissions for the second entity, wherein the update is appended to a blockchain ledger that stores access permissions for the blockchain community, the blockchain community comprising a plurality of different organizations that share access to the confidential data store.