WISeKey International Holding Ltd (NASDAQ: WKEY) announced that its subsidiary SEALCOIN secured $4 million in strategic investment to accelerate integration into the space economy. The funding includes $1 million from The Hashgraph Group and $3 million from WISeKey.

SEALCOIN focuses on decentralized physical internet technology and develops blockchain-powered transaction systems for machines, devices, satellites, and autonomous systems. The investment will support continued development of the SEALCOIN ecosystem, which is powered by QAIT, a utility token designed for machine-to-machine and space-related blockchain transactions.

"Space infrastructure is becoming a foundational layer of the global digital economy," said Carlos Moreira, Founder and CEO of WISeKey and SEALCOIN. "As satellites increasingly connect machines, sensors, autonomous vehicles, and critical infrastructure worldwide, there is a growing need for trusted digital identities, secure settlement mechanisms, and autonomous transaction capabilities."

The SEALCOIN platform combines satellite communications, blockchain technology, digital identity, cybersecurity, and Internet of Things infrastructure. The ecosystem supports satellite-to-device transactions, autonomous machine payments, space-based IoT connectivity, and digital asset settlement across satellite networks.

SEALCOIN completed a SPACEDROP campaign that attracted over 45,000 participants who interacted with the WISeSat satellite constellation. The campaign involved engagement with 19 operational satellites and helped validate satellite-to-blockchain communications infrastructure.

"Our community became our first generation of space economy users," Moreira said. "By interacting with the constellation, validating connectivity, and actively engaging with our infrastructure, they contributed directly to the development of services that will support future machine-to-machine and space-based transactions."

The investment will strengthen integration between the WISeSat satellite constellation, SEALSQ semiconductor technology, decentralized identity infrastructure, and the transaction layer facilitated by the QAIT token.