How We Authenticate
🛡️ Our Authentication Promise
At The Signature Dugout, we sell only authentic autographed baseballs — no exceptions. Every baseball we offer has been verified by trusted, industry-recognized authentication companies. Here’s how we ensure the legitimacy of each signature:
✅ Trusted Authenticators
🔹 JSA (James Spence Authentication)
One of the most respected names in sports memorabilia. To verify your item, visit spenceloa.com/verify-authenticityand enter the unique code printed on the COA or affixed hologram.
🔹 Fanatics Authentic
An official partner of major leagues and players. Their items are authenticated directly through exclusive signings. Learn more at fanaticsauthentic.com.
🔹 Total Sports Authentics (TSA)
A reputable memorabilia dealer with a track record of verified signings. Items are authenticated via totalsportsauthentics.org.
🔹 T.S.I. (Total Sports Inc. / Total Sports Enterprises)
A long-standing memorabilia company known for both in-person and virtual signings. Based in Pittsburgh, they issue tamper-proof holograms registered with the International Hologram Manufacturers Association (IHMA) — a global security standard.
They also offer a lifetime authenticity guarantee and often partner with Beckett for additional verification.
Learn more at tseauthentication.com.
🔹 National Card Discounters
A vintage memorabilia source from the 1990s. Their certificates include a lifetime authenticity guarantee and often feature a contact number and issuer signature for verification.
🔎 Our Commitment to You
We only list items we believe in — autographs backed by physical COAs, verification portals, and industry-standard holograms. When you buy from The Signature Dugout, you're getting more than a collectible — you're getting a guaranteed piece of baseball history.