This is my account on a Chinese encrypted social media, bihu. This link is the article nutildah another searched for. This is the link from that year.This is the link from that year.
https://bihu.com/article/1285422
This is the introduction of my personal homepage, I have put the sentence "I am RainbowKun on Bitcointalk" on it, you can check it.
https://bihu.com/people/159860
If you're the original author of this article, it shouldn't be so hard to prove. I can't read the site, but if you're the author, can you just add a link saying something like: "I published this article in English on Bitcointalk, using the name RainbowKun". That would add a lot of credibility to your story.
I did this in my media as you wanted, and I posted a short article。https://m.bihu.com/shortContent/1105603687?i=1CCcaQ&c=2&s=1cP01x
