Whilst I appreciate the abounding details provided I don't really need them. I am interested in obtaing the original dates a for a video file that has been frequently copied and lost its real indentity/
I see what I want buried in a stream of data.
Would it be a good idea to provide a filter?
Or if as a newbie I am missing something please offer advice
You can use this exiftool command to view all the time stamps in a file
exiftool -time:all -G1 -a -s /path/to/files/
But you need to understand that metadata isn't magic. It is easy to alter and remove. If the data is gone, then it is permanently gone.
Many simple video editors do not copy the original time stamps when editing. And any video from a social media site or from a text has had all metadata striped away for privacy reasons.