JAC (Joint Admissions Chain) mainly solves the pain points that the trust cost of educational institutions is too high and excellent educational resources cannot be fully utilized. JAC adopts the core algorithm of Ethash, which can be used as a data confirmation and transaction medium in the field of educational information services. JAC is used as a general equivalent of TOKEN circulation to reward institutions and individuals in various interactive links of education. Under the active incentive contract mechanism, JAC will gradually establish a traffic community for the educational ecosystem.