ZAC is a foundational public chain for a commercial ecosystem. As a leader in blockchain-based Internet of Things (IoT), ZAC uniquely combines blockchain technology with IoT technology. On this chain, businesses can establish a variety of sub-chains according to their needs, enabling them to monitor the entire process of product production, logistics, warehousing, and retail. As a typical commercial ecosystem chain, its primary feature is ensuring the authenticity and reliability of all data (including ownership data and product circulation data). Through our self-developed card reader chip and label chip, all data related to physical goods during circulation can be automatically and rapidly uploaded to the chain, avoiding human interference and minimizing the possibility of data tampering. This creates a fair, transparent, traceable, authentic, and trustworthy new-generation commercial ecosystem.