NBC is an agricultural ecosystem chain developed on Ethereum, with a total issuance of 68 million that will never be increased, aiming to build a global ecological farming system. The blockchain for the agricultural ecosystem, based on a system-defined open-source and decentralized protocol, constructs a distributed structural system. This allows information for value exchange to be disseminated across the network through distributed propagation. Information data content is confirmed through distributed ledger technology and stamped with timestamps to generate block data. This data is then propagated to various nodes through distributed methods, achieving distributed storage.