Kesla Chain (KEC for short) is a combination of Internet of Things and blockchain technology, and is committed to building a Big data blockchain for the interconnection of everything.KEC is the fundamental token of Kosla, and through KEC, Kosla has facilitated the assetization of commodity circulation data in the Internet of Things, overturning traditional methods of data acquisition. Khosla derived other smart contracts through the basic circulation data of goods, and ultimately contributed to the authentic, traceable and highly available Big data blockchain of the Internet of Things....