Blockchain method for preventing fake image publication

Content published in the media significantly impacts the perception of the situation in the world and the formation of opinions on current events. The Internet, in particular, has become a medium where information can be published easily and quickly. More and more information portals are being created from which we learn about the reality around us. Unfortunately, most do not use primary and reliable resources but only from sources that have already published information, especially photos. There are also situations where fake news and supporting images are created intentionally to evoke negative emotions or spread disinformation. Such actions may impact global politics and the economy and, in specific cases, threaten local or international security. Modern scientific analyses focus primarily on detecting fake news and fake images. However, a more effective method is to prevent the publication of fake news. We propose a method for authorizing content and images using blockchain technology. The presented method has mechanisms that protect against manipulation attempts, which has been confirmed in research.