COJAM is a blockchain-based online social prediction platform in which the user creating the content and the user solving the content interact, and the smart contract recorded in the blockchain network pays rewards according to the prediction result of the collective intelligence. COJAM is a platform for finding solutions to uncertainties about current problems and past experiences from a future perspective. In COJAM, users earn rewards by creating content or participating in content.

The creator can create and upload a quest(prediction content) that does not overlap with existing contents and have any problems such as against laws, unappropriated images, discriminated mentions and etc. with the contents. There are users (most of users) who prefer to participate rather than be a content creator. When they participate in each content, there is no required authentication time or standard, and they can freely vote with supported cryptocurrencies on the answer that is most likely to be the correct answer in the future. Voters who voted for the correct answer will receive rewards according to their vote amounts.

COJAM DAO is a governance group that is freely formed by CT holders to transparently guide decisions on content creation, answer judgement, and governance of COJAM's reward ecosystem.