This week, Spacecoin made headlines by announcing a groundbreaking accomplishment: the successful execution of the first blockchain transaction executed in space and returned intact via its CTC-0 satellite. This event marks a significant milestone in the development of decentralized satellite internet infrastructure, showcasing how space technology can revolutionize internet connectivity.
Carried out on the Creditcoin test chain, this transaction serves as a vivid demonstration that signed blockchain messages can travel through space while maintaining their integrity. Unlike traditional terrestrial networks that are susceptible to interruptions, censorship, and high costs, Spacecoin asserts that a decentralized satellite system offers global internet access that is not only resilient but also free from monopolistic control.
In this proof-of-concept, the transaction involved uplinking messages to Spacecoin’s CTC-0 satellite from Punta Arenas, Chile, utilizing S-band radio waves. The satellite then re-transmitted these messages to a ground station located in the Azores, Portugal, employing a store-and-forward relay method. The successful validation of this 7,000-kilometer transmission on the Creditcoin network confirmed the satellite’s relay capabilities and the robustness of the Spacecoin protocol.
This pioneering demonstration was conducted in collaboration with EnduroSat, a European nanosatellite company specializing in modular satellite platforms. EnduroSat has recently secured €43 million to scale its production and enhance its in-orbit services, reinforcing its position in the satellite landscape.
“This successful test proves that our vision of trustless, satellite-based internet connectivity is technically viable,” stated Adam Wexler, Spacecoin’s director of systems architecture. “We’ve demonstrated that blockchain transactions can maintain their cryptographic integrity when routed through space, which is a fundamental first step in the practical implementation of the Spacecoin Data Network protocols.”
This milestone is more than a technical achievement; it signifies a potential shift in how we conduct transactions. With Spacecoin at the helm, users can now engage in global peer-to-peer cryptocurrency transactions via space-based networks, operating independently from centralized entities like banks and payment processors. For billions residing in regions laden with financial restrictions, limited accessibility, or unreliable internet service, satellite-driven transactions could pave the way for true economic freedom.
As CTC-0 demonstrates its core functionalities, Spacecoin is gearing up for expansion. In Q4 2025, the company plans to deploy an additional three satellites under the collective title CTC-1, which will enable inter-satellite handoffs and broaden demonstrations with international partners. Through these initial scaling efforts, Spacecoin aims to establish the groundwork for a genuinely decentralized internet, powered from orbit.