Spacecoin unveils SOLAR and Lumen for decentralized satellite internet

Decentralized satellite internet project Spacecoin on Sept. 2 unveiled the technical architecture of SOLAR, a communications routing protocol for satellite internet data transmission, and Lumen, a billing and settlement layer for usage fees. Unlike the conventional model in which a single telecom operator manages both data routing and fee settlement, the structure allows multiple independent operators to participate in a single network while enabling users to choose data transmission paths and verify each operator’s contribution for settlement. A Spacecoin official said, "SOLAR" creates the routes through which data travels and handles communications delivery, while "Lumen" verifies how much each operator contributed to building those routes and distributes the corresponding fees. The official added the system is designed to connect infrastructure run by different operators into a single satellite internet network without relying on a central operator for route decisions or usage-fee settlement.