基于区块链技术的轻量级短视频版权存证方案

A scheme of short video copyright storage based on lightweight blockchain technology

基于区块链技术的短视频存证中,若视频数据直接上链,会受到区块大小、吞吐量等限制,并产生巨大的网络时延。为此,提出一种轻量级的区块链短视频版权存证方案。为减少视频信息链上的存储量,使用视频图像特征提取技术构建视频唯一性校验,并将其与视频其他信息组成视频证书,上链存储。同时,为保证链下数据安全,基于星际文件系统(Inter-planetary file system,IPFS)技术,提出原始短视频数据与链上数据进行轻量化信息存储映射。轻量级视频链上存储方案既缓解了链上短视频数据的存储压力,又保证了视频版权的存储安全。实验证明,该方案在应对短视频数据版权存证时有效,且网络时延较低。

In the blockchain-based short video storage,the video data is directly uploaded to the chain,which is limited by block size and throughput,and generates huge network latency.Therefore,a scheme of short video copyright storage based on lightweight blockchain technology is proposed.In order to reduce the amount of storage on the video information chain,a video uniqueness verification is constructed based on video image feature extraction technology,and a video certificate is constructed with other video information for on-chain storage.At the same time,in order to ensure the security of off-chain data,the mapping between the original video data storage and on-chain storage of lightweight information is proposed based on IPFS technology.The lightweight video on-chain storage solution not only relieves the storage pressure of on-chain video data,but also ensures the storage security of video copyrights.Experimental result shows that our scheme is efficient on the storage of video copyrights with low network latency.