The Galaxy Data Chain (GDC) has emerged as the times require. GDC is a storage type public chain that uses spatiotemporal proof and replication proof, and utilizes slicing and re encryption technology to achieve efficient storage of large files while ensuring data security and privacy. It specifically solves the bottleneck of massive data storage in blockchain 2.0 technology. GDC public chain provides a series of basic capability services, including infinitely scalable storage, high throughput computing, and fast network transmission, enabling distributed applications to easily complete data generation, transmission, storage, retrieval, and calculation. GDC public chain has been optimized and designed for IoT and artificial intelligence scenarios. It has provided strong support for the safe circulation, storage, full play of value of Big data and the creation of smart Internet of Things....