_Architecture overview

Iridium network - Communication

- Tap into the functional
- LEO satellite network
- Easy to get terminals on end nodes

Cryptosat

- Provides satellite infrastructure

Iridium network - Communication

- Leverages all above to build a robust protocol with specific HW capabilities

Security services

Figure 2: Spacecoin provides security services for Earth users and RPC nodes

Phases

Figure 6: Communication flow of two requests between Uncelestial and Celestial

Apps

Figure 1: Spacecoin serving as a marketplace and payment layer for other satellite service providers