GlobalCOA is a modern online autograph authentication service specializing in verifying the authenticity of signatures through photographs. We’ve developed a unique platform where anyone can quickly and conveniently authenticate an autograph without the need to send a physical item. Our approach combines cutting-edge artificial intelligence technologies with years of authentication data from the world’s leading companies.

Our Technology
We use the latest advancements in artificial intelligence and machine learning to analyze photographs of autographs. Our methods are based on the following principles:

Comparison with an extensive database: Our AI is trained on thousands of verified signatures, sourced from the archives of major authentication companies and experts. This allows for automated and precise comparison of your signature with original samples, identifying even the smallest differences.

Handwriting analysis algorithms: Our system is capable of analyzing key autograph characteristics such as line shape and direction, pressure, slant angle, and stroke sequence. These features are extremely difficult to forge and are essential in determining authenticity.

Computer vision: By utilizing advanced image recognition algorithms, our AI can analyze ink structure, paper texture, and other key features. These technologies help detect even the smallest flaws or unique traits that may not be visible to the naked eye.

Why Can Authenticity Be Determined from a Photo?
Thanks to years of research in the authentication field and the available AI technologies, we can accurately evaluate an autograph through its digital image. Our database and algorithms allow us to:

Recognize subtle details that forgeries miss: We perform micro-level analysis of details such as irregularities in lines, variations in pen pressure, and unintentional hand movements, which create a unique “handwriting fingerprint.”

Compare against thousands of samples: Every autograph is checked against existing authentic exemplars, eliminating the chance of error.

Eliminate human error: Using AI minimizes the possibility of human mistakes or bias, making the authentication process both precise and objective.