♐SERN is a video posted to the 3rd youtube channel account on January 26, 2018. It is 1:01:12 long and contains a single image (held constant through 1239 frames — confirm!). It was posted 4 days after ♐NODE. The video was removed by Youtube on or before February 19, 2018.
The audio track is mostly silent, except for sounds at the very beginning and end:
Those sounds, with the silence between them removed can be heard here.
With a constant image, this is an unsuitable candidate for making a composite.
On or before February 19, 2017, ♐SERN was removed “for violating YouTube’s policy on spam, deceptive practices, and scams.” This removal was first observed by Discord user Peter on February 19, 2017.
Just over a week before the removal of the video, UFSC was listed at #2 in a popular youtube video by The Infographics Show called “What Are The Weirdest Unsolved Internet Mysteries?”, which lead to a surge of interest and new viewers. Whether this attention is related to the removal of ♐SERN is unclear, but it is possible.