"Bitcoin Classic" - noun, this is a name for a type of bitcoin "has been a point of" - verb, this is saying that people have noticed it. people were talking about it. "controversy" - noun, something that people cannot agree about. a disagreement. "since its announcement" - this tells us the time when bitcoin was a controversy. "announcement" - when people were told about something. I hope this helps

I'm not sure I understand your question. What does 'a show of' relate to? And when you say 'with that one' - with what?