When you see the PSA/DNA Guaranteed Authentic label on an autographed collectible, it means that a PSA Certified Authenticator has witnessed the item being signed.

The certainty that PSA/DNA Guaranteed Authentic items are genuine is 100%, and every collectible displaying the PSA/DNA Guaranteed Authentic label is guaranteed for life!


"Signed-in-the-presence'" authentication by PSA is absolutely the best way to guarantee the authenticity and maximize the value of your autographed memorabilia. Take advantage of it when you purchase autographs at sports collectors shows, such as the National, Chicago Sun-Times, Sports Spectacular, and GTSM. For upcoming show dates and information, click here.

Look for the PSA/DNA Guaranteed Authentic label when you shop for vintage autographed memorabilia in retail stores or online. If you don't see it, ask why!

The PSA/DNA Advantage

The PSA/DNA authentication/identification process virtually eliminates the problem of counterfeits and forgeries and allows items to be verified each time they change hands.

1. Item is signed in the presence of a PSA/DNA representative.
2. Permanent, invisible, synthetic DNA-laced ink, verifiable using a proprietary infrared laser, is used to identify the item.
3. Certificate of Authenticity is issued and the item may be tagged with a matching, serialized tamper-evident label.

If you are a dealer, promoter, agent, or sports organization and would like more information on the PSA/DNA Signed-in-the-presence Authentication programs, call 800-325-1121 or email info@psadna.com.