Datis Ausum

Mat Kim, known online as Datis Ausum, is a South Korean video editor known for creating fan videos using clips of the animated series Steven Universe, rarely with other series as well. He joined YouTube on March 31, 2015 to upload his first music video based on the show, a tribute to the character Lapis Lazuli with the Porter Robinson song, "Fresh Static Snow". With the exception of said video, none of his work goes beyond four minutes in length.

Early videos were edited solely on Vegas Pro with a more simplistic style, however as Mat's skillset and experience grew he would experiment with other programs such as Adobe After Effects for videos, incorporating complex typography, compositing, masking, and 3D animation. The influence of his unique editing cannot be understated as he would go on to inspire many music videos in homage to it.

The end of Steven Universe Future (and thus, the Steven Universe franchise as a whole) marked his final upload on YouTube, a video game-themed thank you video to the show uploaded on April 15, 2020.

Some of his videos have disappeared from his own YouTube channel due to copyright blocks, and been re-uploaded to other unaffiliated channels such as datis ausum 2.0.