Stop Guessing.
Know What It's Worth.
We combine forensic ink analysis with 25 years of provenance data to authenticate sports and entertainment memorabilia with 99.8% certainty.
Babe Ruth
1927 Official AL Baseball
The Fake Market is Booming.
In 2025, the FBI estimated that over 50% of vintage sports autographs sold online are forged. The problem isn't just malicious actors; it's outdated authentication methods relying purely on human eyesight.
Our approach removes human bias by combining microscopic ink analysis, pressure mapping, and a database of over 10 million verified signature exemplars.
| Method | Accuracy |
|---|---|
| Visual Inspection (Standard) | ~75% |
| Provenance Research | ~85% |
| AutographPass Protocol | 99.8% |
Specialized Authentication
Baseball
From 19th-century cabinet cards to modern game-used equipment. Our deepest exemplar database.
Explore BaseballMusic & Entertainment
Guitars, album covers, and setlists present unique ink adhesion challenges. We use specific light spectrums to verify signatures on difficult materials.
Explore MusicBasketball
Analyzing the distinct sweeping strokes common in basketball signatures, often signed in motion.
Explore BasketballMovies & TV
Props, scripts, and promotional photos. Differentiating between secretarial signatures and authentic autographs.
Explore MoviesView All Guides
Read our detailed methodology
Value Estimator Tool
Get a rough baseline value based on item type and condition before submitting for formal authentication.
Note: This is a mathematical baseline. Final authenticated value depends on specific provenance, ink strength, and exact item rarity. Use advanced estimator.
Common Questions
How is AutographPass different from PSA or JSA?
Legacy authenticators rely primarily on visual inspection by "experts". While human expertise is valuable, it is prone to bias and fatigue. We use a 3-step process: digital microscopic ink analysis, machine-learning stroke comparison against 10M+ exemplars, and final review by two independent forensic analysts. Read our full competitor comparison.
What happens if my item fails authentication?
You receive a detailed rejection report outlining exactly why it failed (e.g., "secretarial signature traits identified in loops of 'B' and 'R'"). We do not charge the full authentication fee for failed items—only a $20 processing fee. See Pricing for details.
Can you authenticate items signed yesterday?
Yes. Modern ink actually presents different chemical signatures than vintage ink. We can often determine if a "vintage" signature was applied with a modern pen, a common red flag for forgeries. Learn more in our guide to spotting fakes.