What you are looking at is almost certainly a specific internal release group's patched encode of Batman: Mask of the Phantasm (1993) in 1080p from a Blu-ray source. The odd spacing and the word "patched" are the key clues.
Thus, "batmanmaskofthephanta sm19931080pblurayh patched" is a corrected version of a specific 2017-2018 Blu-ray rip by group "H." batmanmaskofthephantasm19931080pblurayh patched
If the patch changed the framerate (rare for this film), set --fps=23.976 in mpv. What you are looking at is almost certainly
The screen glitched, and a text overlay appeared in the corner of the frame, formatted like a terminal command: //ROOT_MEM_RESTORED. Title : Batman: Mask of the Phantasm Release