Curve, Matter Labs announce testnet for Ethereum’s first user-defined ZK rollup contract – AMBCrypto English

Curve, Matter Labs announce testnet for Ethereum’s first user-defined ZK rollup contract - AMBCrypto English

In what is big news for the community, Curve and Matter Labs have announced that they have taken the next big step towards scaling Ethereum – a zkSync L2 smart contracts testnet with Curve Finance as the first resident DApp.

With Vitalik Buterin referring to rollups as the ‘only choice for scaling ETH,’ the introduction of this testnet for user-defined smart contracts is an important development for the Ethereum ecosystem.

“Rollups are here, but not completely here,”  Buterin had said a few days ago at the ETH Online kickoff summit, drawing attention to the fact that Optimism was the only L2 solution to support EVM smart contracts (Staking SNX on the Optimistic ETH L2 Testnet), and zkSync was focused on payments.

However, this is about to change as zkSync will be introducing an EVM-compatible rollup using a combination of SNARK-friendly Zinc VM and PLONK proof verification for Ethereum.

One thing to note here is that the Zinc programming language is non-Turing complete and so, Curve contracts had to be re-written to a Zinc version to function. However, Matter Labs is currently working on making Zinc Turing complete in the near future.

The testnet for user-defined contracts, now fully functional, will now allow writing and deploying smart contracts, testing them locally, and generating zero-knowledge proofs of smart contract execution.

This is an important step towards fueling
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