Autograph Authentication & Grading Services
PSA is the largest and most trusted autograph authentication service in the world. With over 35 million collectibles certified, PSA authenticates a vast array of signatures, ranging from sports to history and entertainment. Combining decades of experience with cutting-edge authentication techniques and a passion for the hobby, PSA continues to deliver a service collectors prefer.
PSA Services
Autograph Authentication
Have your prized autographs examined and authenticated by PSA’s authenticators.
Autograph Encapsulation
Encapsulate your prized autographs in one of our holders versus opting for the traditional Letter of Authenticity (LOA) or Certificate of Authenticity (COA).
Card & Autograph Dual Grading
Two grades, one label. Get your autographed trading cards authenticated and receive a grade for both the card and the autograph.
Submit in four easy steps
Submission Price
Determine the price of your autograph submission.
Shipping Charges
Determine your return shipping charges.
Packaging Guidelines
Review and follow these packaging guidelines.
Curious about our Autograph Authentication process?
Add-On services for your submission
Autograph Grading
Assign a numerical grade to your PSA-certified autograph, and it will set that autograph apart in the market.
Autograph Baseball Grading
Not only can PSA grade your autographs, but we can grade the quality and condition of your baseball.
RookieBall™ & RookieGraph™ Designations
See if your rookie autographs qualify for these special designations.
More services from PSA
QuickOpinion™
Get a PSA authenticator’s opinion before you bid on a potential purchase.
In-The-Presence Autograph Authentication
Learn more about the best way to guarantee the authenticity of your autographed memorabilia.
PSA Pre-Certified
Learn more about this unique service for auctions and prospective bidders.
Autograph Authentication Process
Our authenticators have a diverse knowledge base that is complemented by proprietary methods and technology to form the following four-step authentication process.
Step 1
Examination
PSA authenticators conduct ink analysis, autograph structure analysis, object evaluation and side-by-side comparisons.
Authenticators may also use a video spectral comparator to further evaluate the autograph.
Step 2
Anti-Counterfeiting
Once the autograph is deemed genuine, the item is marked with invisible ink that contains a synthetic DNA sequence specific to PSA. A certification sticker bearing an alphanumeric serial number is also provided.
Step 3
Certification
Either a Certificate of Authenticity (COA) or a Letter of Authenticity (LOA) is issued with the genuine autograph. The document contains the same alphanumeric serial number to match the label on the item.
Step 4
Documentation
The certified autograph can be verified publicly using our online Certification Verification webpage or mobile application.
Our Autograph Specialists
Trading Cards and Sports Memorabilia
Our History
PSA is the world’s leading third-party authentication service for autographs and memorabilia.
PSA Autograph Authentication Services was founded by PSA in 1998 in response to widespread counterfeiting, forgery and piracy of autographed collectibles. Just as PSA grading changed the way cards and other collectibles are valued, bought and sold, PSA’s four-level authentication process has revolutionized the hobby of autograph and memorabilia collecting – making it safer and more enjoyable for all. PSA has authenticated hundreds of thousands of autographs and collectibles from the worlds of sports, music, entertainment, politics and history, including many of the most valuable of their kind.
