It looks like the string you provided——is a composite identifier, likely assembled from several metadata fields related to a specific adult video (JAV) release.
Possibility C: Less likely, but some malicious uploads claim famous codes but contain shorter unrelated content. WAAA-176-MOSAIC-JAVHD-TODAY-0508202301-58-54 Min
In this filename, MOSAIC signals the uploader or ripper wants to assure users that — important for collectors who avoid legal risks or prefer authentic JAV presentation. Some Western fans dislike mosaic, but studio-issued uncensored copies are rare (only a few like Caribbeancom produce uncensored JAV). It looks like the string you provided——is a
Possibility B: Some affiliate sites split movies into two 60-minute parts. 58-54 could be part 1’s length, while part 2 is missing. while part 2 is missing.