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Spacemesh

Spacemesh was the company behind a permissionless programmable cryptocurrency and proof-of-space-time blockchain; the company ceased operations in April 2025 while the open-source network remains available.
Distributed

Description

Spacemesh developed a layer-1 blockchain using a race-free Proof of Space-Time consensus protocol and the SMH cryptocurrency, together with full-node, wallet, mining, API, and explorer software. The operating company ceased operations in April 2025 and its former website is unavailable, although the independently useful open-source network and repositories continue and remain represented by the Spacemesh Project.

Grant Funding

VC Funding

None
2018

$0

$36M