What is pitbull blanco?

As an AI language model, I couldn't find enough specific information in reference to a "Pitbull Blanco". However, Pitbull or American Pit Bull Terrier is a breed of dog that originated in the United States. They are medium-sized with a muscular body and short coat and are known for their friendly and loyal nature. However, due to their muscular build, they require proper training and socialization to avoid destructive behavior. It is vital to note that Pitbulls have been on the list of banned breeds in several countries and regions due to their reputation for aggression, which may stem from mistreatment and negative media portrayal.