Figure 17.6: DID Architecture

This decentralized identity architecture ensures the following:

Ownership of the data by the user verified by Issuer and

Verifier.

Data is shared only with the user’s consent, and hence,

ensures privacy and security.

Verified certification by the Issuer as claimed by the user.

Integrity of the data as any change of hash on the Blockchain

would indicate that the data is either tampered or is no longer

valid.

The model also enables Verifier organization to check if the

data is still valid and not revoked by Issuer.

The beauty of this model is that there is no need for the Verifier to do

another background verification of the User’s data as it’s already

verified by Issuer and the reference data is available online 24/7

through a public Blockchain. Please note that the user’s personal

data is not written to the Blockchain, rather only a reference hash is

written on it. Hence, DID also adheres to most of the acts and laws