Splits are generally allowed yes, you'll just have to carefully record every entering of save, essentially just be able to show you have not altered your world between recordings. Also ideally make a playlist of all parts of your run for example through youtube videos.
Would you please provide a Link of mentioned glitch? Is there currently a glitchless run on the Leaderboard with it?
When submitting a run you have the option to choose the platform you are on as a tag, if you're on xbox just choose the "console" option.
It's viewable on YouTube, click on the link in the middle and you should be able to see it.
As I told you in the previous comment, submit a new run or edit this one. Putting the picture in a Comment is not recommended. Otherwise, looks fine.
You may submit the Screenshot, the Moderation team will consider whether it is enough proof or not. Videos are always better and sufficient, if only a Screenshot, preferably a F3 Screen in the Bossroom.
There's plenty of other categories which may satisfy your desires more. Feel free to explore!
Ohne Konkurenz wär ja zu einfach für dich oder? WR ist btw bei 3:30 oderso, wir ham noch zu tun
perfekt erst gesehen nachdem ich meinen reingeschickt hab ggs aber hell nah reicht für heute