>>724679>How do I use a "tripcode"?Tripcodes can help verify a user's identity to others, and are a type of pseudo-registration. To use a normal tripcode, place a hash mark ("#") followed by a word or short phrase after what you've entered into the [Name] field (ex. "User#password"). Upon submission, the server will generate the hash unique to that particular word or phrase. The previous example would display "User !ozOtJW9BFA" after being posted.
More information at
https://www.4channel.org/faq#sectrip