Identifying revoked credentials

1. A system for providing an application, comprising:

an interface configured to:

receive an indication to provide the application to a device;

a hardware processor; and

a memory coupled with the hardware processor, wherein the memory is configured to provide the hardware processor with instructions which when executed cause the hardware processor to:

provide the application to the device, wherein the application is configured to:

receive a request for a list of valid credentials;

determine a list of stored credentials;

provide the list of the stored credentials to a database system, wherein the database system is configured to:

determine revoked credentials, comprising to:

 query a credential system to determine whether a revocation indication has been written to a distributed ledger network for at least one stored credential of the list of the stored credentials; and

determine new credentials;

receive an indication of the revoked credentials from the database system;

receive an indication of the new credentials from the database system;

determine the list of the valid credentials based at least in part on the list of the stored credentials, the revoked credentials, and the new credentials;

display the list of the valid credentials and the revoked credentials;

determine whether to purge metadata associated with the revoked credentials; and

in response to a determination that the metadata associated with the revoked credentials is to be purged, delete, from a user system, one or more of the stored credentials associated with the revoked credentials and the metadata associated with the revoked credentials.

2. The system of claim 1 , wherein the hardware processor is further configured to retrieve the new credentials.

3. The system of claim 1 , wherein the database system is further configured to revoke one or more credentials.

4. The system of claim 3 , wherein one or more new credentials are provided to the database system for identifying revoked credential information.

5. The system of claim 3 , wherein the database system is further configured to provide a set of revoked credential identifiers to the credential system.

6. The system of claim 5 , wherein the credential system is configured to:

for each credential identifier of the set of revoked credential identifiers:

store an indication in a distributed ledger that the credential associated with the credential identifier is revoked.

7. The system of claim 1 , wherein the database system is configured to:

receive the list of the stored credentials;

provide an indication of the stored credentials to a credential server;

receive an indication from the credential server that one or more stored credentials of the stored credentials has been revoked.

8. The system of claim 1 , wherein the stored credentials comprise credentials verifying proof of salary, proof of employment, or proof of health insurance status.

9. A method for providing an application, comprising:

receiving an indication to provide the application to a device; and

providing, using a processor, the application to the device, wherein the application is configured to:

receive a request for a list of valid credentials;

determine a list of stored credentials;

provide the list of the stored credentials to a database system, wherein the database system is configured to:

determine revoked credentials, comprising to:

query a credential system to determine whether a revocation indication has been written to a distributed ledger network for at least one stored credential of the list of the stored credentials; and

determine new credentials;

receive an indication of the revoked credentials from the database system;

receive an indication of the new credentials from the database system;

determine the list of the valid credentials based at least in part on the list of the stored credentials, the revoked credentials, and the new credentials;

display the list of the valid credentials and the revoked credentials;

determine whether to purge metadata associated with the revoked credentials; and

in response to a determination that the metadata associated with the revoked credentials is to be purged, delete, from a user system, one or more of the stored credentials associated with the revoked credentials and the metadata associated with the revoked credentials.

10. A computer program product for providing an application, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions which when executed cause a processor to perform operations comprising:

receiving an indication to provide the application to a device; and

providing the application to the device, wherein the application is configured to:

receive a request for a list of valid credentials;

determine a list of stored credentials;

provide the list of the stored credentials to a database system, wherein the database system is configured to:

determine revoked credentials, comprising to:

query a credential system to determine whether a revocation indication has been written to a distributed ledger network for at least one stored credential of the list of the stored credentials; and

determine new credentials;

receive an indication of the revoked credentials from the database system;

receive an indication of the new credentials from the database system;

determine the list of the valid credentials based at least in part on the list of the stored credentials, the revoked credentials, and the new credentials;

display the list of the valid credentials and the revoked credentials;

determine whether to purge metadata associated with the revoked credentials; and

in response to a determination that the metadata associated with the revoked credentials is to be purged, delete, from a user system, one or more of the stored credentials associated with the revoked credentials and the metadata associated with the revoked credentials.

11. A system for identifying revoked credential information, comprising:

an interface configured to:

receive a request for a list of valid credentials; and

a hardware processor; and

a memory coupled with the hardware processor, wherein the memory is configured to provide the hardware processor with instructions which when executed cause the hardware processor to:

determine a list of stored credentials;

provide the list of the stored credentials to a database system, wherein the database system is configured to:

determine revoked credentials, comprising to:

query a credential system to determine whether a revocation indication has been written to a distributed ledger network for at least one stored credential of the list of the stored credentials; and

determine new credentials;

receive an indication of the revoked credentials from the database system;

receive an indication of the new credentials from the database system;

determine the list of the valid credentials based at least in part on the list of the stored credentials, the revoked credentials, and the new credentials;

display the list of the valid credentials and the revoked credentials;

determine whether to purge metadata associated with the revoked credentials; and

in response to a determination that the metadata associated with the revoked credentials is to be purged, delete, from a user system, one or more of the stored credentials associated with the revoked credentials and the metadata associated with the revoked credentials.