Patent attributes
This disclosure relates to a system for managing personal data over a blockchain network. In an implementation, the system includes a user access provider (UAP) node in communication with a service provider (SP) node. The SP node may include an SP blockchain storing personal data on a SP transaction chain. The UAP node may store meta data of the user on a UAP transaction chain. The meta data may include access control information for the service provider to access the personal data. The UAP node may receive, from the SP node, an access request for the service provider to access a portion of the personal data of the user. The UAP node may access control information for the service provider based on the access request, update the meta data with the configured access control information, and replicate the meta data to the SP node via a blockchain transaction.
