DAC (Da Vinci Coin) is a public chain issued based on blockchain combined with artificial intelligence, designed to solve cross-border issues in the entertainment industry, payment field, and credit authentication. Da Vinci is an economic network established at the civil level for close communication in domestic networks and even between countries. It not only includes cultural aspects, but also includes cooperation in various other directions. Da Vinci will become an important hub in these cooperation, connecting people and organizations from various countries, regions, and the world. Just like flying to any country, Leonardo da Vinci also wanted to explore trade and cultural exchanges through digital channels....