Did you just stumble upon a download or a file on your computer that has been digitally signed by Sharpened Productions, Inc? If that's the case, please read on.
You will probably notice Sharpened Productions, Inc when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Sharpened Productions, Inc with the following procedure:
Here is a screencap of a file that has been digitally signed by Sharpened Productions, Inc:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This means that the file has been published by Sharpened Productions, Inc and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can view 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 see the address for Sharpened Productions, Inc, such as the street name, city and country.
COMODO RSA Extended Validation Code Signing CA has issued the Sharpened Productions, Inc certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.
The following are the Sharpened Productions, Inc files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/68 | fvp4.exe |
The detection percentage is based on the fact that I've collected 68 scan reports for the Sharpened Productions, Inc files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
The analysis is based on certificates with the following serial numbers: