# Innovative Application of Blockchain Technology for Digital Recipe Copyright Protection
## 1 Introduction  
With the rapid development of technology and the popularity of digital products, all kinds of digital platforms have become a part of our daily life, for example, digital recipes [1]. In March 2011, a food software became popular among users, owing to its unique features; it has since become the premier family food app on the Chinese Internet. According to the latest data, this software is one of the most popular apps on the Chinese Internet regarding the number of downloads and the number of active users. In addition, it has a significant presence in the international market, especially in non-Chinese-speaking regions. The app provides users with a one-stop service, including functions such as ingredient purchase, kitchenware purchase, recipe search, and sharing. With the success of leading digital recipe platforms, an increasing number of companies have begun to create their own digital recipe boards. Numerous food lovers share and upload their ideas and work on these platforms for other users to download and learn from. However, this convenience has also revealed some problems. For example, there is a largeamount of repetitive and redundant recipes in the market, and plagiarism even occurs to a certain extent. These problems stem from the imperfection of the existing digital copyright protection system, which threatens the interests of original works and the market order and hinders the cultural market's healthy development and innovation [2]. Currently, the challenges facing digital copyright protection [3] include the proliferation of copyright infringement, loopholes in copyright registration, difficulties in enforcing rights, and low public awareness of copyright protection. These problems are particularly evident in digital recipes, as numerous chefs and food enthusiasts share and upload their unique works on various apps, making the task of copyright protection increasingly arduous. Therefore, we need to find an innovative way to address these issues, protect the rights of creators, and promote the healthy development of the digital recipe field [4]. The application of blockchain technology in digital rights management has made significant progress. It has also been successfully applied in other fields, such as the management o medical records and music copyright, demonstrating its wide application potential. Some new technologies and strategies, such as SimHash and improved text similarity detection methods, are also improving the accuracy and efficiency of copyright protection. However, despite its many advantages, blockchain faces challenges such as widespread copyright infringement and weak copyright awareness in practical applications, which require further research and improvement. This research aims to design and implement a blockchain-based digital recipe copyright protection scheme to address the many challenges faced in the digital recipe domain. Our method attempts to reshape the current digital copyright protection landscape by providing a secure, efficient, convenient, and traceable solution. The main contributions of this paper are outlined as follows:  
1. A novel blockchain-based copyright protection scheme for recipes is proposed to provide all participants with a fair, secure, and trustworthy digital environment. 2. The traditional SimHash algorithm is improved for the problem of imperfect audit mechanisms. The method combines TF-IDF and PageRank to improve Simhash. Compared with the conventional model, this new approach introduces the consideration of semantic information and word importance while ensuring the word frequency, significantly improving accuracy and recall. 3. To solve the centrality problem of the traditional DPOS consensus mechanism, a specific consensus mechanism based on the quality of recipes is proposed. The DPOS consensus mechanism is effectively improved by considering recipes' completeness, logic, and detail to calculate the nodes' rank.