Finally caught the ghost!!!
juillet 22, 2026 4 lire la lecture
If you've ever attended an autograph signing, you've probably faced this question:
Should I put an authentication sticker on the back of my card?
Many collectors worry that adding a Beckett, JSA, or PSA authentication sticker will lower the card's grade if they later submit it to a grading company.
The good news is:
No. An authentication sticker placed on the back of the card during a witnessed signing does not lower the card's grade.
Let's explain why.
At many autograph signings, authentication companies such as:
will place a small authentication sticker directly on the back of the card after witnessing the athlete sign it.
This sticker serves as permanent identification that the item was authenticated during the signing.
Witness authentication means a representative from the authentication company actually watched the athlete sign the item.
Because they personally witnessed the signature being applied, they can certify that the autograph is genuine.
This is different from post-signing authentication.
When a company later authenticates an autograph that it did not witness, its authentication is based on an expert opinion after examining the signature.
Both services are valuable, but witnessed authentication provides documentation that the signature was observed in person.
No.
The authentication sticker itself does not count against the card's condition.
We recently received back a:
2024 Donruss Optic Bo Nix Downtown
that had:
On the back of the card was a Beckett Witness Authentication sticker that had been applied during the signing.
Even with the sticker attached, PSA awarded the card its highest possible grade.
That's a great real-world example showing that the authentication sticker did not prevent the card from receiving a Gem Mint 10.
The sticker isn't considered damage to the card.
It was intentionally applied by the authentication company as part of the witnessed authentication process.
When PSAgrades the card, the presence of a legitimate witness authentication sticker does not automatically reduce the grade.
Instead, PSAevaluates the same four grading categories it always does:
A properly applied witness sticker does not prevent a card from achieving a PSA 10.
This is where many collectors get confused.
If you later submit a signed card to PSA for autograph authentication, PSA is offering its professional opinion that the autograph is genuine based on its review of the signature.
By contrast, a Beckett Witness or JSA Witness sticker indicates the autograph was actually observed by an authorized representative during the signing.
In other words:
Witness Authentication
Standard Authentication
Both are respected forms of authentication, but they are different processes.
Not every collector likes authentication stickers on cards.
Some simply prefer the clean appearance of a card without any sticker on the back.
Others don't mind the sticker because they appreciate the added confidence that comes with witnessed authentication.
Neither preference is wrong.
It comes down to personal taste.
If your goal is to document that the autograph was witnessed in person, a witness authentication sticker is an excellent option.
If your primary concern has been whether the sticker will hurt your PSA card grade, our experience—and the Bo Nix PSA 10 example—shows that it does not prevent a card from receiving a Gem Mint 10.
We understand why collectors ask this question.
Nobody wants to do something that could potentially lower the grade of an expensive card.
Based on our experience submitting thousands of autographed collectibles, a legitimate witness authentication sticker applied during an autograph signing does not lower the card grade simply because it is present.
If you value first-person witness authentication, you can confidently choose that option without worrying that the sticker alone will cost you a PSA 10.
An authentication sticker from Beckett, JSA, or PSA that is applied during a witnessed autograph signing does not automatically lower your card grade.
If the card otherwise meets the grading standards for a PSA 10, it can still receive a PSA Gem Mint 10—even with a witness authentication sticker on the back.
Ultimately, the decision comes down to your personal preference. Some collectors prefer the clean look of a card without a sticker, while others appreciate the added confidence that comes from documented witness authentication.
No. A Beckett Witness Authentication sticker applied during a witnessed signing does not automatically reduce the card's grade.
Yes. A card can still receive a PSA Gem Mint 10 even if it has a legitimate witness authentication sticker on the back.
Witness authentication means an authorized representative from an authentication company personally observed the athlete sign the item.
Yes. Witness authentication confirms the autograph was observed in person. Standard autograph authentication is based on an expert's opinion after examining the signature.
That depends on your preference. Some collectors value documented witness authentication, while others prefer the clean appearance of a card without a sticker.
Les commentaires sont approuvés avant leur publication.
Overall rating: 4.9 / 5 from 4853 reviews.
Finally caught the ghost!!!
Matt P. 5/5 Verified
Great to add another one to the 70 Topps set. Fantastic service!
Michael M. 5/5 Verified
All hail the Chief!!! Robert Parrish .. 4x NBA champion inscription.. Double 00..
Troy H. 5/5 Verified
I waited a long time for this one especially being a huge fan of the Showtime era Lakers. Kevin Mchale was a thorn in my side but I have the utmost respect for him and the Celtics.. A great addition to my growing collection..
Troy H. 5/5 Verified
The Hall of Fame ticket!! Earl Campbell thanks to the team at PSM!! Keep up the good work!!
Troy H. 5/5 Verified
My new favorite Funko!! #1 … Warren Moon
Troy H. 5/5 Verified
Nice autograph
Arturo A. 5/5 Verified
The autograph looks great and full
Arturo A. 5/5 Verified
Signature smaller than I requested...
Arturo A. 5/5 Verified
Came out great!
Arturo A. 5/5 Verified
Came out good
Arturo A. 5/5 Verified
PSM always does an excellent job. They took care of my Dream rookie card. I like the fact that when I send my items into PSM I never have to worry about them.
Randy P. 5/5 Verified
The CJ auto hits for me. Upper Deck, sharp placement, and honestly, it makes my collection much better. Greatly appreciate the auto.
Joseph M. 5/5 Verified
AWESOME
Jeffrey E. 5/5 Verified
So awesome
Jeffrey E. 5/5 Verified
Beautiful
Jeffrey E. 5/5 Verified
Sweet
Jeffrey E. 5/5 Verified
Beautiful
Jeffrey E. 5/5 Verified
Great piece
Jeffrey E. 5/5 Verified
Awesome
Jeffrey E. 5/5 Verified
Smooth transaction
Jeffrey E. 5/5 Verified
AWESOME
Jeffrey E. 5/5 Verified
Beautiful piece of memorabilia!!!
Jeffrey E. 5/5 Verified
To finally get one of my baseball idols is an absolute dream come true but to get this card with an on card auto really made it all worth the wait! Thank you!!
Michael R. 5/5 Verified
Excellent service with this signing. Thank you!
Michael M. 5/5 Verified
Autograph came out great!
Arturo A. 5/5 Verified
Awesome experience as always, I’d highly recommend Powers to anyone looking to expand their sports memorabilia collection!
Jason R. 5/5 Verified
Once again, Powers Sports came through big time! I had been waiting for many, many years to have this mini helmet signed by Carson Palmer. With special thanks to Natalie and Mathew, they were able to coordinate this endeavor exactly as I wanted it. Excellent autograph, perfectly positioned, using the exact paint pen requested and the C.O.A. sticker positioned right where I wanted it. Thank you folks so very much!
Vincent G. 5/5 Verified
Matt and his team did a great job as usual. I highly recommend power’s!
Jason K. 5/5 Verified
Always great dealing with Powers. Got to watch Earl Singing on their website. Couldn't be happier with the helmet and the signature. Another perfect purchase. Thanks Powers crew!
William M. 5/5 Verified
I submitted 2 cards for signing by Dennis Rodman and came back very nice but one of the cards corner was damaged when returned back. Thank you Matt Powers and his team for this signing event.
Raymond T. 4/5 Verified
I submitted 2 cards for signing by Hakeem Olajuwon & came back very nice. Thank you Matt Powers and his team for this signing event.
Raymond T. 5/5 Verified
Power Sports Memorabilia is the best and always my "go to" autograph company to deal with. They are so accommodating and always get what you want and how you want it !!!! A+ on ALL counts !!!
Michael T. 5/5 Verified
I wasn't at the convention to be there for his signing. However, he has a killer autograph very happy with this autograph
Christopher C. 5/5 Verified
Another great jersey signing!
Joseph C. 5/5 Verified
PSM never let's me down. Another great auto on my multi signed piece. Thank you again.
Dustin D. 5/5 Verified
The Barry Larkin auto in my PC is pure heat. Crisp ink, great placement, total keeper.
Joseph M. 5/5 Verified
Just received by Bo Jackson Rookie Card back from Powers Sports Memorabilia. Once again, Powers Sports was able to get my card signed exactly as requested. Excellent signature, perfectly positioned and using the right kind and color marker.
Vincent G. 5/5 Verified
Everything at Powers is first rate. They posted the videos on Facebook so I actually got to watch LT sign my helmet. And then they shipped me my helmet it's perfect could not be happier.
William M. 5/5 Verified
Had to get one of the coolest catchers in the game short man wacks that bat
Steven R. 5/5 Verified
Sign up to get the latest autograph news and signings.
Product added to cart successfully!
Go to cart