Background: With the development and innovation of digital information technologies
and new-generation Internet information platforms, new types of information exchange methods
have been spawned. It has broken the restriction of the traditional internet boundary, and integrated
all round connections between people and objects.
Methods: Based on the above progresses, digital multimedia contents distributed or published much
more convenient on the internet than before and most of them without any copyright protection. The
dishonest owner can easily copy and distribute digital multimedia content without reducing any perceptual
quality. According to the relative concerns, watermark protocol networks play a very important
role in the usage tracking and copyrights infringement authentication, etc. However, most of
the watermark protocols always require a “fully trusted third party”, which has a potential risk to
suffer conspiracy attack.
Results: Therefore, in this paper, we focus on designing a watermark protocol with trustless third
party via blockchain for protecting copyrights of owners that they want to publish or distribute on
the internet. The proposed watermark protocol includes three sub-protocols which covers the negotiation
process, transaction process and identification processes.
Conclusion: In addition, this paper also provides a fully detail analysis that describes the benefits
and weaknesses of current solution.