Commodity, Bill and certificate anti-fake method and system and special transceiver

The present invention judges the truth based on whether somebody possesses the ownership of some article. The article is set with unique identity code, and when somebody obtains the article, the unique identity code is stored in data base. During conveyance, altering attribute and checking, the ownership code, event command and relevant parameter are up-transmitted to server by using the transceiver and compared to those in data base, and the comparison results are recorded in the data base while being down-transmitted to the client computer for correct selection.