All of the information is mostly gathered on Kiwi. This goes for any public information about the actual person and the detective work on the Twitter account itself. As for the proof of identification, Onlyfans is pretty damn shoddy with that. I have no doubts in my mind that the girl on the 2 verification posts on the Twitter, which by the way isn't her, managed to fool them.
The girl deleted all her other social media exactly 7 months ago. The exact same time the first video of her got leaked. She used to go by ci_surrender on Reddit/Fansly. This is easily verifiable by googling. She stopped posting in July, which is when the video was posted.
On her Snapchat she came out with this response as for why she up and deleted everything:
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All of the posts as of yet on the Twitter, are all old posts that she tried to purge from the net. They're not completely gone, as some websites archived a few of her posts.
https://nsfw.xxx/user/ci_surrender (Reddit archiver) is one of them.
She shot in total 35 videos. ALL of them have been leaked by a 3rd party, who isn't affiliated with the Twitter, but used to know Ciara. She leaked them all so the guy on Twitter couldn't earn money from selling the videos. More specifically it's this gal:
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This person has leaked ALL the videos already as of a few hours ago. Also verifiable (if you feel like taking the risk and going on the website (Luxure) yourself).