Did you read the whole thing? Really, explain me how he took out all his organs, transfered them into a puppet and survived it. This requires quite the strong life force and i wont believe he survived that being a normal person. I also pointed out that Chiyo knows Fuuinjutsu. The thing of his father and him having red hair just proves that IF he was an Uzumaki, so would his father. And i dot really think CHiyo knew about her Uzumaki blood. Im not labeling every red hair as an Uzumaki. Im giving reasons to why this specific one might be.