As information security is constantly challenged, it is very necessary to construct a practical and secure new model of information hiding. The existing cover channel models often has the risk of being easily disturbed and destroyed, and the different characteristics of shared resources are needs to be utilized to guarantee its concealment. Due to the security and reliability, decentralization, robustness and other characteristics, Blockchain has been applied to information hiding field (steganography), however, its concealment and practicality...