Spacecoin™ is a decentralized physical infrastructure network (DePIN) that delivers global, trustless internet connectivity via a constellation of Low Earth Orbit (LEO) nanosatellites. Built on the 5G-Non-Terrestrial Network (5G-NTN) standard and integrated with blockchain technology, Spacecoin enables peer-to-peer, censorship-resistant data transmission without reliance on centralized terrestrial or submarine cable infrastructure. The network uses smart contracts to coordinate bandwidth access, process transactions, and ensure transparent operations, allowing users anywhere to connect directly with compatible mobile devices and pay using cryptocurrency.