ZAC is an underlying commercial ecological public chain. As the leader of blockchain IoT, ZAC uniquely combines blockchain technology with IoT technology. On this chain, merchants can establish various sub-chains according to their own needs, and monitor the entire process of production, logistics, warehousing, and retail circulation of all commodities. As a typical commercial ecological chain, ZAC's main feature is to ensure that all data (including property ownership data, commodity circulation data, etc.) are authentic and credible. Through the self-developed card reader chip and tag chip, all the data of offline physical goods in the circulation process can be automatically and quickly uploaded to the chain, avoiding human interference, and minimizing the possibility of data tampering, thus creating a fair and transparent , Traceable, authentic and credible new generation business ecosystem.