Image Authentication Application with Blockchain to Prevent and Detect Image Plagiarism

Plagiarism was an act that made a disadvantage for the author because of the use of other people’s work or ideas without mentioning any credit. Especially for image plagiarism cause disadvantage for the author’s income because in this internet era many image authors sold their work for income. The previous research proposed the model that combined DCT hash and Blockchain, but this research didn’t conduct the plagiarism area of the image, so we proposed our model that combined DCT hash and Blockchain to prevent and detect plagiarism images. Our contribution for this research is to prevent plagiarism through the initial authentication process and then to detect image plagiarism on pixel-by-pixel of the image for more accurate plagiarism detection. Blockchain technology also prevented any change to data that was already stored in the Blockchain network, so it can prevent any change to image data and can prevent plagiarism attempts. With this proposed model, we got 100% accuracy for detecting images as plagiarism or not plagiarism. The results of testing the speed of the model on 100 different types of images show the speed of the model in displaying conclusions is 47.90 seconds. We also added some improvement areas for future research.