At first glance, it looks like a corrupted filename from a peer-to-peer network circa 2012. But after 80 hours of cross-referencing, we believe this string is a for a forgotten piece of transmedia horror.
The “bunny” animatronic’s eye reflection now reveals a face not seen in earlier releases. Some frame-by-frame viewers claim the “2015720” code in the file name matches a real abandoned children’s theater in Ohio. Probably coincidence.