The additional string appears to be metadata or a timestamp from a specific file or stream. "JG701" often appears in technical service manuals (e.g., for BenQ projectors or Pioneer audio systems ) or as a furniture order code. However, in the context of the video ID, it likely indicates a specific file version or a "Join Group" identifier used by certain video platforms, with 57:57 Min noting a specific point in time or duration.

If you are looking for a research paper or document related to this code, no academic publications exist under this specific alphanumeric sequence. Furniture for social spaces - Arc Business Interiors

The identifier refers to a Japanese adult video title featuring Mayuki Ito [1.1, 1.2].