proof-of-work
(2)
HyperTrack
HyperTrack is a San Francisco developer platform that turns a phone's raw location signal into structured, usable data for the people who move goods and staff shifts. Founded in 2015, it started as live-location APIs and SDKs for delivery and fleet apps, then shifted toward workforce automation - planning, assigning, tracking, and verifying work for gig and shift labor. Its building blocks power staffing marketplaces, field-service tools, and last-mile logistics operators, and the company says its software touches over two million gig workers in the U.S. alone. In short: HyperTrack sells the plumbing that lets other companies know, reliably, whether the work actually happened.
PraSaga Foundation
PraSaga Foundation is a non-profit blockchain organization building SagaChain, a layer-one blockchain that replaces smart contracts with programmable 'smart assets' - first-class objects that model real-world things directly on-chain. Founded in 2017 by Michael Holdmann and David Beberman, PraSaga pairs a natively sharded architecture with a hybrid Proof-of-Work/Proof-of-Stake consensus and a Python-based developer stack (SagaOS, SagaPython) to target the scalability, cost, and usability limits of first-generation chains. Its native SagaCoin uses a dynamic monetary policy aimed at stable purchasing power. A public development testnet went live in 2025.