Cartesi

Cartesi is taking smart contracts to the next level. It is solving the urgent problem of scalability and high fees on blockchains by implementing a variant of optimistic roll-ups. Most notably, Cartesi is revolutionizing smart contract programming by allowing developers to code with mainstream software stacks. Noether is Cartesi's side-chain that’s optimized for ephemeral data, providing low-cost data availability to DApps.