Social networking platform. Social chain quotient refers to the social network platform built by blockchain technology, which realizes the trust and value exchange between users through the decentralized characteristics of blockchain and the automatic execution function of smart contracts. The characteristics of social chain merchants include the security of user data, the protection of user privacy and the protection of user rights and interests. Social chain merchants can provide users with a fairer, more transparent and safer social network environment, and at the same time provide users with more economic opportunities, for example, through activities, content creation and advertisements on the social chain merchant platform.