The mark consists of the stylized wording "PROFESSOR BLOCKCHAIN, B, and PB" and design featuring the stylized black words "PROFESSOR BLOCKCHAIN" in black quotation marks located above a stylized rendering of a man with tan skin and black hair. The man has a tan neck, hands and face with a black hair, eyes, eyebrows, mustache and beard and is wearing black glasses, white teeth, pink and red tongue and mouth, a white shirt, a yellow and black tie with various sized black circles featuring the bitcoin symbol in yellow, a white watch face outlined in black on the right wrist with a brown strap, a brown belt with a gold buckle, blue-gray trousers, and brown shoes. The letters PB are positioned on the left side of the tie in black, on the upper chest. The man is smiling and his right arm is slightly bent with his right hand resting on his hip. The background of the entire mark is white.