In order to make sure the video publishing in the public network is transmitted safely and recognized with liability, this study aims to provide a video feature extraction method based on shot segmentation, moreover video coding and tamper feature have been fully taking into consideration. Besides, the extraction data will be researched with bit commitment, and the tampered part of the video will be figured out through verifying the data of bit commitment. The sender can adjudge the liability of illegal video transmission through verify the bit commitment. Experimental results show the complexity of this computation method is lower and it has a good safety and reliability.