Vitalik Buterin Calls Ethereum's ZK Proving Speed Race Won as 99% of Proofs Land in Under 10 Seconds
Key Takeaways
- •Vitalik Buterin stated that 99% of zero-knowledge proofs are now generated in under 10 seconds, a threshold he considers sufficient for live network use.
- •Ethereum produces a block roughly every 12 seconds, so sub-10-second proofs meet the real-time proving benchmark long viewed as a prerequisite for broader ZK verification.
- •Faster proving reduces the lag between rollup transaction execution and cryptographic confirmation on Ethereum while lowering hardware requirements for proving operators.
- •Buterin has proposed eventually extending ZK verification to Ethereum's base layer as a longer-term step for the protocol.
- •Ethereum's native token traded near $2,365 in a 09:39 UTC market update, roughly 15% below its late-September peak near $2,800 and under moving averages around $2,490 and $2,550.
Ethereum co-founder Vitalik Buterin has declared the race to make zero-knowledge (ZK) proof generation fast enough for live network use effectively won, with 99% of ZK proofs now landing in under 10 seconds, according to a report published by COINOTAG on October 15, 2026.
The figure addresses one of the most closely watched engineering benchmarks in the Ethereum ecosystem. The network produces a block roughly every 12 seconds, and "real-time proving" — the ability to generate a validity proof within a single slot — has long been viewed as a prerequisite for broader use of ZK-based verification across the protocol. Proofs that confirm in under 10 seconds fall inside that window, while the remaining share of proofs still registers above it.
Zero-knowledge proofs allow one party to demonstrate a computation was carried out correctly without revealing the underlying data or re-executing it. Within Ethereum's scaling strategy, commonly referred to as "The Surge," ZK-rollups run large batches of transactions off-chain and post a compact cryptographic proof to the main chain, where it can be verified at low cost. Buterin, who wrote Ethereum's original whitepaper in 2013 ahead of the network's 2015 launch, has for years identified real-time ZK-EVM proving as a key milestone and has proposed eventually extending ZK verification to Ethereum's own base layer.
Faster proving compresses the lag between a rollup executing transactions and those results being cryptographically confirmed on Ethereum, and it lowers the hardware requirements placed on proving operators — two factors the community has emphasized in its push toward real-time proving. Per the report, the sub-10-second readings indicate that, in Buterin's assessment, proving speed is no longer the binding constraint. The eventual extension of ZK verification to Ethereum's base layer, which he has proposed, is the longer-term step he has outlined for the protocol.
In a market update at 09:39 UTC, COINOTAG noted that Ethereum (ETH) traded near $2,365, roughly a 15% decline from its late-September peak near $2,800. The asset was priced below its moving averages around $2,490 and $2,550 and was holding near $2,360 at the time of the update.
This article is based on content first published on COINOTAG: https://en.coinotag.com/vitalik-ethereum-eth-zk-speed-race-won-security-priority
