GDAC (Galaxy Digital Index found coin) calculates a benchmark number based on the top 10 cryptocurrencies in terms of market value, assigns certain weights based on their market value, and combines other multiple factors, including the storage value of cryptocurrencies, smart contract performance, transaction status, project progress, privacy assets, etc. The goal of GDAC is to enable everyone to safely and efficiently monetize personal data, including behavioral, medical, health, and genetic data, while protecting privacy. In this way, not only can more people realize the value of data, promote social awareness of personal privacy protection, but also liberate a large amount of data, increase data mobility, form a bilateral data market, and thus accelerate the development of artificial intelligence....