Please accept my best wishes for a healthy and happy New Year and sorry for not replying sooner.
I believe my HDR files are in the ProPhoto RGB color space, since they are made of ProPhoto RGB tiff files and no conversion was made. They are created and saved in a third party software. According to their website f.a.q. “… saves the name of the color profile in the header of the Radiance file” and "… processes the RGB values of your source images directly, without converting them to another color space."
You can download and check some of my files from these links:
The TIFF files are here:
http://fernandochaves.com/03tiffs.rarThe SNSX and the HDR files are here:
http://fernandochaves.com/SNSX_HDR.rarThank you,
Fernando Chaves