Method for preventing tampering with monitoring video by using blockchain

The invention belongs to the technical field of blockchains, and particularly relates to a method for preventing tampering with a monitoring video by using a block chain, which comprises the followingsteps of: generating a video fingerprint chain through a frame block data structure: generating a frame block chain by using a video, wherein the frame_block_chain is formed by arranging a group of frame_blocks in an ascending order according to the size of a time_stamp; wherein one section of video is a sequence of a group of frames and is arranged in an ascending order according to timestamps of the frames, the sequence of the video frames is very similar to an account book storage structure of a block chain, a frame block data structure can be created on the basis of the video frames, thenthe frame blocks are connected in series in a linked list form to form a frame chain, and the video is subjected to block chain certification according to the frame blockchain structure. Tampering isprevented, the frame_block