Did you just find a file that has a digital signature from Pierre-Marie Baty? If that's the case, please read on.
You will typically see Pierre-Marie Baty when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screengrab shows:

You can view the additional details from the Pierre-Marie Baty digital signature with the following steps:
Here's a screenshot of a file that has been signed by Pierre-Marie Baty:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Pierre-Marie Baty and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also view the address for Pierre-Marie Baty, such as the street name, city and country.
StartCom Class 2 Object CA has issued the Pierre-Marie Baty certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Pierre-Marie Baty files I have collected, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Pierre-Marie Baty files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Pierre-Marie Baty.
| Detection Ratio | File Name |
|---|---|
| Not available | Chess Giants Installer.exe |
The analysis is based on certificates with the following serial numbers: