Cb01_co-pvlp_f1ct10n_72_hd_mkv -

The string appears to be a filename metadata tag used by the Italian streaming community, specifically associated with CB01 (formerly Cineblog01). Breakdown of the File Tag:

: Commonly indicates 720p resolution or a part of a release series. CB01_CO-pvlp_f1ct10n_72_HD_mkv

: The use of "f1ct10n" instead of "fiction" is a classic defensive measure against DMCA bots that scan filenames for copyrighted titles. The string appears to be a filename metadata