Video Data Authentication Using a Smart Contract Published on the Blockchain

With the significant advancement in digital photo and video editing software, it is becoming very easy to modify digital video content. However, because of the increased misuse of such editing software, detecting the modification of digital content and verifying the authenticity of such content has become a significant challenge. The paper aims to address the main problem of tampering with digital video content by verifying that digital video received via digital media is tamper-free and identical to what was sent. To solve and control such a problem, blockchain features are used by creating a decentralized application on the Ethereum platform. A watermark is also used to access the data stored on the blockchain. Blockchain-based digital video content authentication technology is safe and reliable, with lower recording time and lower cost. Since the process of watermark embedding occurs only for the first and last frame, the content of the digital video does not change and, as a result, the PSNR value of the video is unaffected. This system allows a user receiving digital video to verify the authenticity of the content received without referring to the sender.