Players Ink Authentication (PIA) is a witness-based only Certification Company, which means that a representative from PIA services was there to witness the autograph being hand-signed; and therefore, guarantees it is 100% AUTHENTIC. A Special tamper-evident hologram is used to easily identify these items as PIA, and the online database will reflect all pertinent information for verification. If you are a dealer, promoter, agent, or sports organization and would like more information on PIA or would like to book your event with us Contact Us.