Standard PIVKeys are shipped with a device certificate issued by the PIVKey Device Certificate Authority. This certificate includes the Global Unique ID (GUID) of the device.
If you want to use these certificates on a server or PC, you need to add the root certificates to the trusted root store. The url of the root certificates is embedded in the device certificate itself.
The CA certificates and Certificate Revocation lists can be found here: ca.pivkey.com
The backup of the CA files can be found here: ca.tagliosc.com