Vitalik Buterin believes that Ethereum’s ZK proving stack is on the verge of a breakthrough and urges the ecosystem to capitalize on this momentum to address one of its most persistent user experience challenges: long L2 withdrawals on optimistic rollups.
According to Buterin, the fraud proof windows required for canonical bridging from rollups like Base back to Ethereum are too lengthy for users, creating incentives to utilize solutions with questionable trust assumptions that undermine the purpose of L2s.
In a recent post on X, Buterin stated, “Encouraging assets to actually be issued on L1 and making it economically viable to do that… is one of these really important pieces in terms of keeping the L1 central.”
Historically, optimistic proof systems have necessitated multi-day challenge periods. Eliminating this limitation involves a shift away from optimistic proofs, which some validity proof-based rollups have already done, making the technological lift much easier today.
“ZKVMs are almost production-ready this year in a way that was not true even one year ago,” Buterin remarked.
Last week’s launch of the Succinct Prover Network mainnet marks a significant milestone in the infrastructure development of the ecosystem.
The decentralized marketplace offered by Succinct allows applications to submit proof requests while independent provers compete to fulfill them, receiving payments in the new PROVE token.
Developers can access global proving power through an API call without requiring custom infrastructure, which will help standardize verifiable computation and make frequent validity proofs more cost-effective.
Tarun Chitra highlighted the long-term impact of the Succinct Labs launch, envisioning a future where ETH mainnet incorporates ZK as a first-class citizen.
Buterin also proposed a path towards near-instant native cross-L2 asset movement through the L1 by aggregating proofs from multiple rollups.
If these developments materialize, the gains in capital efficiency could be substantial, reducing reliance on trusted bridge operators and concentrating settlement activity back on the base layer.
Steven Goldfeder, co-founder of Offchain Labs building Arbitrum, expressed reservations about the readiness of a pure ZK approach for mainstream adoption.
