Metis Hybrid Rollup Goes Live on Devnet as Post-Quantum Proof Work Advances
Metis said its Hybrid Rollup has launched on Devnet, combining validity proofs with its existing optimistic Rollup architecture to shorten withdrawal waits through on-chain verification of execution results. According to Foresight News, Metis first presented the design at ETHDenver in March 2023, with an original goal of reducing the withdrawal period from seven days to hours.The upgrade includes combining optimistic challenges with validity proofs based on Ziren, an open-source zkVM developed by ZKM, and adding support for ML-DSA post-quantum signatures to the decentralized sequencer (DSeq). The Devnet codebase supports both elliptic-curve cryptography (ECC) and post-quantum cryptography (PQC); ECC is enabled initially, with a planned transition to post-quantum cryptography on a module-by-module basis.Metis plans to launch a testnet in the first quarter of 2027 to demonstrate both verification paths and further test the upgraded architecture. The project also published a discussion draft proposing the conversion of the OVM Token into a native asset to better align with a standard EVM execution environment. The proposal has not received governance approval, and its snapshot block and timeline have yet to be determined.