StarkWare launches the S-Two fitting room on Starknet, expanding privacy and scalability.

• StarkWare implements S-two for increased speed on Starknet.
• Provider allows private proof on consumer devices.
• Update accelerates and decentralizes DeFi infrastructure at layer 2.

StarkWare has announced the implementation of its next-generation zero-knowledge prover, S-two, on the Starknet core network, focusing on reducing costs, latency, and increasing decentralization. According to the company, S-two represents "the fastest and most privacy-protected production proving system in the world."

The upgrade replaces the previous network verification components and now generates validity proofs for each block, reducing verification time and validation costs. Simultaneously, network throughput and scalability improve without compromising reliability. The system also allows independent operators to collaborate with computational resources, increasing the network's resistance to censorship.

In Layer 2 environments, such as Starknet, provers play an essential role: they generate cryptographic proofs that attest to the correctness of off-chain transactions before settlement at the base layer. This architecture allows the network to scale without relying on heavy on-chain computations, reducing fees and improving efficiency.

The S-two, short for "STARK Two," was designed to be up to ten times faster than previous versions—in performance tests, it outperformed alternatives by a significant margin. One of its key differentiators is its ability to run on consumer hardware, such as smartphones and laptops, opening the way for privacy applications and everyday use.

“We created S-two with a clear objective: to improve the user experience on Starknet.”

"said Eli Ben-Sasson, co-founder and CEO of StarkWare."

“When tests are so quick and economical, new categories of applications become viable, and decentralization ceases to be an aspiration and becomes an inspiration…”

In addition to boosting Starknet's scalability within the Ethereum ecosystem, StarkWare highlights that S-two will pave the way for new frontiers: on-chain privacy, anonymous identity, verifiable AI inference, and games with zk-based proof security. The launch is presented as a cornerstone of what the company defines as a "financialization layer" that also includes settlement in both Bitcoin and Ethereum through a single, privacy-ready execution layer.

With the S-two present, Starknet reinforces its position in the crypto-asset and DeFi space as a layer 2 infrastructure capable of meeting both high-performance and privacy demands, while preparing for new use cases in common hardware and decentralized operations.