Abstract: This paper stated an instruction transmission and tracing pattern in digitized command-and-control business.A typical digitized command-and-control system generally runs in a peer-to-peer network,in which each transaction of interactive instructions should be well recorded.This paper proposed a blockchain-based solution to implement efficient transmission and tracing of significant transactions which could be precisely defined by system designers.With nature attributes of encryption,decentralization and tamper resistance,blockchain-based solution focuses more on data consistency,transaction timeliness and information security.Prime events of command-and-control interactive instructions between master nodes,slave nodes and witness nodes of instruction would be completely transmitted and sequentially appended to traceable records data blocks in restraint of consensus mechanism.

Key words: Blockchain, Command-and-control, Information security, Interactive instruction