The Ethereum Economic Zone successfully completed its first atomic cross-layer transaction between layer 1 and a layer 2 network on Ethereum mainnet on October 5-6, 2026. This operation, described as proof of concept for atomic synchronous composability, was executed through a proxy-and-bundle mechanism submitted via the postAndVerifyBatch smart contract function. The framework was launched by Gnosis and Zisk with co-funding from the Ethereum Foundation, and publicly introduced at EthCC in Cannes in March 2026. Initial testing involved CoW Swap and Uniswap v4, but the deployment remains experimental with audits still in progress.
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