However, the entertainment industry is composed of various participants such as creators, consumers, producers, and investors in various fields such as music, webtoons, movies, and games. As the entertainment industry grows, the role of intermediaries increases, along with their costs. Yet the creator’s share of revenue remains unfair. In recent years, publishers’ profit shared in each distribution structure is gradually increasing, eating into the startups’ profit margin. Since digital assets such as digital content (music, webtoon, movies, game items) are in centralized transactions, sales data provided by business providers (such as distributors) cannot be trusted.