Blockchain PoL System Tackles GPS Fraud with RF Triangulation

- Blockchain-based PoL system to combat GPS spoofing vulnerabilities. - Uses RF triangulation and decentralized ledgers for tamper-proof validation. On July 16, 2025, Cointelegraph reported that Space Telecommunications Inc. (STI) introduced a blockchain-based proof-of-location (PoL) system to address GPS vulnerabilities. Because bad actors often exploit these weaknesses for fraud and device manipulation, they have long enabled regulatory evasion and hardware spoofing, creating a need for a decentralized and secure alternative to validate geospatial data. To overcome the weaknesses in traditional GPS, STI pioneered a method that uses distributed networks and RF signals. The PoL system implements a patented "PING-PONG" method to calculate accurate location data. In this system, nodes in the network send and receive radio frequency (RF) signals and measure the travel time to determine their relative positions. This process generates what STI calls "lightspheres," which enable precise triangulation of a node’s location without needing synchronized clocks or centralized servers. The system then stores the calculated data on a blockchain to ensure transparency and tamper-proof integrity. The system has broad applications across multiple industries. In cybersecurity, for example, it introduces a geospatial layer of access control to safeguard critical systems. For finance, location-verified transactions enhance security for high-value operations. In addition, logistics companies can use the technology for efficient shipment authentication and tracking, and it also protects the Internet of Things (IoT) sector from hardware spoofing and remote hacks. This innovative technology serves as the cornerstone of STI's Spacecoin initiative, which is developing a decentralized physical infrastructure network (DePIN) to provide permissionless internet access, focusing on underserved regions. As part of this project, Spacecoin plans to deploy a satellite constellation to deliver global connectivity. The company launched its first satellite in December 2024 and plans to launch three more in October 2025. The Spacecoin website provides live tracking of these satellites, showcasing the project's progress. To engage users and support its mission, Spacecoin runs an inclusive airdrop program that welcomes individuals regardless of their experience with cryptocurrencies. This initiative reflects Spacecoin’s commitment to democratizing internet access while building support for its blockchain-driven ecosystem. STI’s proof-of-location technology has transformative potential across industries, redefining standards for security, transparency, and connectivity in a rapidly evolving world.