StarkWare, behind the scaling solution Starknet announced today, at Eth Denver, that it was building Stwo. Stwo is a no-knowledge proofer, designed to reduce transaction costs and latency.
Oren Kats, StarkWare’s chief operating officer, stated in a Blockworks press release that this new proofer will be open-sourced and built under the Apache 2.0 License. Anyone will have the ability to modify the code and then distribute the modified version of the software.
“Stwo will bring new possibilities for scaling. And they’ll be available for everyone, given that it will be open source from day one,” Katz said.
The term zero-knowledge prover is used in the context of Blockchain technology to describe a computing entity that determines whether information given by a user is correct without divulging its data. They must be able to create “proofs” Verifiers can verify the data.
Stwo is not the first proofer that StarkWare will open source. Starknet’s public blockchain and Starknet apps chains currently use the first-generation Starknet prover, called Stone.
Katz notes that Stwo is an evolution of the Stone Prover thanks to Starkware’s Circle Stark Protocol, which it developed with Polygon.
StarkWare says that Circle Stark’s Circle Stark Proofs will increase the efficiency and effectiveness of existing StarKs. Starknet STARKS are classified the same as other blockchains with zero knowledge, where they are used to verify the validity of specific states.
“Stwo is an evolution of the Stone prover because the Circle Stark protocol circumvents the constraints imposed by the classic STARK protocol. These constraints previously prevented STARK from being used efficiently for smaller fields,” Katz said.
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