Our Authentication Process

We take a lot of pride in our Authentication Program. It’s our highest standard for autographed sports memorabilia and game-used/team-issued collectibles. Its designed to differentiate authentic autographed memorabilia from other items on the market.

Only a select few of our Game Day Authenticated staff authenticate autographs at all of our private and public signing events. Only those items that our authenticators actually witnesses being signed are eligible for authentication under our Authentication Program. Once witnessed, the items receive a GDA tamper-evident sticker with a unique serial numeric combination to easily ID its authenticity.

We also schedule third-party authenticators from the top 4 authentication companies in the industry (PSA/DNA, James Spences, Beckett Witness, MLB Authentication Inc) for all our private and public signing events.
All authenticated memorabilia are then posted on GDAuthenticated.com.

Once you purchase and receive your authenticated autographed memorabilia, you can easily trace the unique serial number on their authentication database by visiting their official website. Their convenient reference database allows you to easily ID all of the details surrounding your item, allowing you to ensure your memorabilia is 100% authentic guaranteed.