New Wide Chain (NAC) is a decentralized advertising system based on blockchain technology. NAC will officially become the governing unit of the WBTO World Business Token Organization. The new wide chain is a side chain developed based on the IPC public chain of the intellectual property chain. It is based on the principle that the audience is voluntary and can obtain benefits. Advertisers directly face consumers and use blockchain technology to subvert the traditional online advertising market. The NAC advertising system will become a set of payment standards commonly adopted by Internet advertisers, website owners and users. Based on the huge advantages of blockchain technology, it will benefit advertisers, protect user privacy and obtain benefits.