PSA/DNA is the world’s leading third-party authentication service for autographs and authenticates signatures from the worlds of sports, history and entertainment.
Our experts have a diverse knowledge base that is complemented by proprietary methods and technology to form the following four-step authentication process.
PSA/DNA experts conduct ink analysis, autograph structure analysis, object evaluation and side-by-side comparisons.
Experts may also use a video spectral comparator to further evaluate the autograph.
Once the autograph is deemed genuine, the item is marked with invisible ink that contains a synthetic DNA sequence specific to PSA/DNA. A unique, serialized label is also provided.
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.