A Video Copyright Transaction Traceability Method Based on Mother-Child Blockchain

The paper proposes a video copyright transaction traceability method (TTMC) based on the parent-child chain. The video production process records and the video traceability source code records that can uniquely identify the video are recorded on the private blockchain (child chain). The alliance blockchain (parent in the chain), the nodes that are authenticated by the member nodes can conduct video media resource copyright information transactions and traceability. First, the parent chain member node is authenticated, and after the authentication, the copyright transaction and the traceability system can be accessed; secondly, the member node stores each step of information in the child chain when making the video for rights certification; then the video is watermarked and obtained Video fingerprint, calculate the video ID for each video, smart contract automatically uses the matching algorithm based on the mother-child chain distributed architecture to automatically complete the transaction. Simulation experiments show that the method proposed in this paper is effective in tracing the source of video copyright transactions.