# DVR Client Roles

Depending on the application, the client of DVR can take one of these roles:

1. <mark style="color:orange;">**Data Issuer**</mark>\
   The entity responsible for issuing the original data that requires protection.
2. <mark style="color:orange;">**Data Holder (User)**</mark>\
   The individual whose confidential data is being protected.
3. <mark style="color:orange;">**Proof Verifier**</mark>\
   The service or application that sets the requirements or conditions on the user data. It verifies the zero-knowledge proof, which contains the result of the requirements.

This multi-faceted trust model allows the proper flow of data and communications among the DVR stakeholder clients and ensures that the user’s confidential information remains protected and secure.


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