On stage at ETHDenver in Colorado Thursday, blockchain software firm StarkWare — the developer behind Ethereum Layer-2 network Starknet — announced it is set to launch a new open-source zero knowledge prover called Stwo.

Currently under development, Stwo is an implementation of Circle STARKs, enabling “ultra-efficient” proving to reduce latency and processing costs. This should result in lower transaction fees and circumvent constraints in StarkWare’s existing prover, Stone, according to the StarkWare team.

“With great speed comes great possibility,” StarkWare COO Oren Katz said in a statement shared with The Block. “Stwo will bring new possibilities for scaling. And they’ll be available for everyone, given that it will be open-source from day one [under the Apache 2.0 permissive free …