30sec is a Web3 advertising media modeled on "Time Economy" that allows everyone to watch ads to earn. 30sec disrupts the traditional media by changing ads from "buying media time" to "buying user time", motivates users to actively watch ads through tokens incent, enabling enterprises to achieve efficient and cost-effectively brand communication, transforming the intrusive and coercive way of ad exposure, and fundamentally changing the relationship between ads and users, as they are no longer av