WISeKey subsidiary SEALCOIN AG has revealed a Proof of Concept (PoC) that can integrate with remote IoT devices through satellite communications. The proof is a step toward a decentralised, transactional IoT that transcends terrestrial infrastructure.

Built on WISeKey’s satellite infrastructure, the PoC enables microtransaction-driven data exchanges between fully off-the-grid IoT devices, with each data set cryptographically signed at the source device for integrity and trust.

The architecture includes device-to-device exchange via satellite, REST API integration with WISeSat via FOSSA, and Blockchain settlement via SEALCOIN on Hedera.

A request for data is initiated by one IoT device and fulfilled by another using SEALCOIN as the value exchange layer. The responding device acts as a bridge to the WISeSat network through a REST API, retrieving data from the satellite-linked database, which has been securely signed by the source device. Each exchange is recorded and settled securely and efficiently via the SEALCOIN token on the Hedera network.

The PoC proves the feasibility of executing secure, decentralised, satellite-enabled data transactions between machines in geographically isolated or infrastructure-deficient environments. According to WISeKey, there are significant implications for smart agriculture, environmental monitoring, autonomous logistics, and defence applications in particular.

This is the first iteration of SEALCOIN’s satellite integration roadmap. The project will focus in future on embedding SEALCOIN capabilities directly within satellites, secured at the silicon level using Secure Element technology. This will enable future “Satellite-as-a-Service” business models, where spaceborne infrastructure autonomously participates in decentralised economies.

“Our goal with SEALCOIN has always been to make transactional IoT borderless, scalable, and secure,” said Carlos Moreira, CEO of WISeKey Group. “With this demo, we’ve not only expanded that vision into space but opened doors to solutions for regions with no cellular or terrestrial coverage”.