$WiMi Hologram Cloud (WIMI.US)$ The blockchain technology-ba...

The blockchain technology-based identity management model provides a decentralized, tamper-proof distributed ledger through blockchain technology. In the identity management model, the blockchain network acts as a foundation of trust, ensuring that the identities and transaction records of all participants are transparent and trustworthy.

In cloud computing, users may need to operate across different service providers (CSPs). 

The model applies the graph theory in trust networks, which provides a mathematical tool for analyzing and representing nodes (users or service providers) and edges (trust relationships) in a network. 

To improve the security of the system, the model designs multiple mechanisms to mitigate common cyber attacks.

As technology develops and user needs change, the identity management model needs to be continuously optimized and updated.