Basic Attention Token (BAT) powers a revolutionary blockchain-based digital advertising platform through the Brave Browser, offering a unique approach to user engagement and advertiser value. Launched in 2017, BAT enables users to earn rewards by viewing privacy-preserving ads, thereby aligning the interests of users and advertisers by reducing ad fraud and improving targeting efficiency. This ecosystem operates on a principle of fairness and efficiency: advertisers use BAT to fund their campaigns, from which users receive a substantial portion (70%) for their attention, eliminating costly intermediaries typically found in digital advertising. The platform has successfully delivered its attention-based advertising experience to users worldwide, with notable adoption in the United States, the United Kingdom, and Canada. BAT distinguishes itself by fostering direct connections between users and advertisers on a platform committed to privacy, transparency, and mutual benefit.