April 4, 2011
PCGS certification verification has been enhanced to help you determine if a coin being offered to you is genuine. Now when a certification number is verified, not only will the system provide the basic coin information such as type, date, and grade, but the system will also search the PCGS database of almost two million auction records and will provide a link to any auction that the coin has appeared in.
Also, if the coin is in any current or retired Registry set a link to it will be provided. By following the link a full size image of the coin can be viewed which should be very useful for confirmation purposes. Verify a cert number here.