中图分类号： TN91；TP311.13 文献标识码： A DOI：10.16157/j.issn.0258-7998.191225 中文引用格式： 陈冰容，张延华，孙恩昌，等. 基于区块链技术的数字电影流动放映系统[J].电子技术应用，2020，46(8)：107-111. 英文引用格式： Chen Bingrong，Zhang Yanhua，Sun Enchang，et al. Digital movie mobile playing system based on blockchain technology[J]. Application of Electronic Technique，2020，46(8)：107-111.
Digital movie mobile playing system based on blockchain technology
1.Faculty of Information Technology，Beijing University of Technology，Beijing 100124，China； 2.Unicom Systems Integration Co.，Ltd.，Beijing 100176，China
Abstract： To solve the security and trust issues in the centralized management, an architecture of digital movie mobile playing system based on blockchain technology is proposed, which provides the credibility and traceability of data by the decentralized consensus mechanism of blockchain and the distributed storage mechanism of IPFS. Here, smart contracts are used to realize the execution logic for the specific functions in the movie mobile playing, including film trading, authorization certification, screening supervision, etc., which integrate the data storage and address record, and reach distributed consensuses among copyright owners, cinemas, projection teams, digital program management centers and regulatory departments. This automatically execution with efficiency and accuracy reduces the artificial intervention in transactions and authorizations, and therefore the fully controllable operation of mobile playing is guaranteed.
Key words : blockchain；smart contracts；IPFS；mobile film projection
0 引言
流动电影放映是加强乡村文化建设，满足人民群众日益增长的精神文化需求的一项重点文化工程。目前针对流动电影的管理一般都是基于传统集中式数据库技术的数字电影流动放映系统(Digital Movies Mobile Playing System，dMs)系统[1-2]。随着流动电影放映工作的推进，这种“中心化”的管理模式暴露出许多问题[3-4]。首先，存在虚报放映数据，套取政府补贴的现象；其次，中心数据库存在数据存储安全性问题；最后，影片版权保护不足，违法者通过盗版播放或传播手段获利。
