Looks like prolonged use with poorly inflated tires.
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May also be an imperfectly aligned brake pad rubbing the tire.
I'd take the tire off for a proper look, but to be really clear: This looks like a damaged bead, that's bad. As in tire might fly off the rim bad.
Unless you know based off a closer look that it's fine, don't ride on this tire.
I'd change it for safety. Tyre is cheap, life is not :/
Bead is torn. It's holding on by the backside cotton strands. If you don't mind crashing, take a spare tire and tube and just send it.
Have you been stunting with this bike? Looks like a tire/rim after a hard landing.