US Patent 11386217 Hybrid centralized and decentralized enterprise system

Implementations of the present disclosure include receiving, by the centralized sub-system, user data representing a user that is authorized to access one or more electronic documents stored in the centralized sub-system, generating a hash identifier that is unique to the user, the hash identifier being generated based on at least a portion of the user data, and recording, by the decentralized sub-system, the hash identifier in a blockchain that is maintained within the decentralized sub-system, the blockchain being stored in multiple nodes of the decentralized sub-system.