COMMUNICATION METHOD, NODE, AND COMMUNICATION SYSTEM

Disclosed in the present application is a communication method, applicable to home Internet of things, and comprising: a third node receives a first block sent by a first node, the first block being capable of comprising first block data; the third node receives a second block sent by a second node, the second block being capable of comprising second block data, and the first block and the second block being blocks in a blockchain maintained by different node clusters; the third node generates a third block according to the received first block and the received second block, the third block being capable of comprising the first block data, the second block data, and a hash value of the third block, and the hash value of the third block being determined according the first block data and the second block data. The technical solution of the present application ensures the reliability and non-tampering of each piece of node cluster information, and realizes the purposes of low overhead, high efficiency and relia