Based on the graphene ecological EOS3.0 technology and the biggest advantage of Ethereum and the corresponding mathematical algorithm, the COC platform conducts distributed encrypted records of human learning behavior and work experience to ensure the authenticity of the data! The data formed in this way has great application value to the society. The completion of the COC platform will accelerate the construction and improvement of the education public chain, form a global large-scale super node, realize high-quality, efficient, and zero-distance course sharing and mutual recognition of education, let high-quality education benefit thousands of households, and promote social integrity and education innovation.