
$GRVT ZKsync’s new prover keeps pace with Ethereum using one graphics card instead of a GPU cluster.
Vitalik Buterin says the speed race is over and the next fight is about proving these systems are correct.
Nothing changes on Ethereum yet, and there is no date for adopting this technology.
The ZK token has more than doubled since August, but the prover gives holders no direct revenue.
In mid-2025, the fastest systems for proving an Ethereum block in about 12 seconds needed somewhere between 50 and 160 graphics cards. On October 13, Matter Labs, the company that builds ZKsync, announced that its new Airbender Prime prover does the job on one. Across 7,200 consecutive Ethereum blocks, a single NVIDIA RTX PRO 6000 Blackwell card produced proofs for 99% of them in under 10 seconds, fast enough to keep up with the chain itself. Two days later, Vitalik Buterin congratulated the team and said the speed race is effectively won. For Ethereum, that moves the debate to a slower and far less exciting question: can anyone show these systems never make a mistake?
7,200
consecutive Ethereum blocks in the test
99%
proven in under 10 seconds
1 GPU
no data center, no cluster
<12 sec
slowest block, still within one Ethereum slot
The finish line was crossed last year. ZKsync shrank the machine
A proof, in this context, is a small cryptographic file confirming that every transaction in a block was processed correctly. Today, each Ethereum node checks a new block by running all of its transactions again on its own hardware. With a proof, a node could check that file instead, which takes very little computing power. The expensive work shifts to whoever generates the proof.
Speed alone is not the headline. In December 2025, the Ethereum Foundation said the industry had already hit its real-time target, after proving times fell from 16 minutes to 16 seconds within a year and costs dropped about 45 times. What ZKsync adds is the size of the setup. Its timings also include the target="_blank" rel="noopener">real-time proving rules were never only about speed. They also capped hardware at $100,000 and power use at 10 kilowatts, so that some of the people who already run validators from home could generate proofs too. A million-dollar machine that proves blocks in five seconds would fail that test, because it would leave proving to a handful of large operators.
One workstation card sits far below that budget. That is why the result matters more for decentralization than for raw performance. If a single card can keep up with Ethereum, then producing proofs stops being a job only well-funded companies can do.
The numbers come from ZKsync’s own tests. The code is open, and the ETHproofs leaderboard lets outsiders follow live results, but no independent team has published a full reproduction yet.
Buterin’s congratulations came with a three-item to-do list
Buterin did not stop at praise. He argued that the industry should now put its effort into making these provers trustworthy, and he named three specific gaps.
The first is formal verification, a set of mathematical checks showing that the prover follows Ethereum’s official rules exactly, including rare edge cases that normal testing can miss. The second is a hard ceiling on proving costs, so that no block can be made deliberately expensive enough to prove that it stalls the network. The third is the security of the proof system itself, meaning confidence that the cryptography underneath cannot be tricked into approving something false.
A slow prover only delays things. A fast prover with a bug can approve something false. If a flaw lets an invalid block pass as valid, nodes that only check proofs would accept it, on a network holding hundreds of billions of dollars. The Foundation has already said it wants validators to check several independent proofs for each block, so that a bug in one system cannot slip through alone. That work tends to take years, not months.
For people using Ethereum today, nothing changes yet
Airbender Prime is a ZKsync product, not an Ethereum upgrade. Validators still check blocks the traditional way, and no one has set a date for proofs to replace that. The Foundation’s plan starts with optional software that validators can choose to run, and only later could it become standard.
If it does arrive, the main gain would be room to grow. Ethereum could handle more activity per block without forcing everyone who runs a node to buy stronger hardware. Faster proofs would not make transactions final faster, though, because the rest of the network process follows its own timing.
ZKsync is already using Airbender on its own chains that run the Atlas upgrade, and it is pitching the same technology to banks and companies through Prividium, its system for private blockchains that settle on Ethereum. For now, those private chains are where the prover makes money for ZKsync, well before Ethereum mainnet could use it.
The ZK token doubled, but the prover does not pay its holders
ZK is mainly a governance token. Fees on ZKsync Era are paid in $ETH, and proposals to give ZK more economic uses still depend on governance votes. A better prover can raise ZKsync’s profile without creating direct demand for the token.
Market trackers recorded a gain of about 6% after Buterin’s post. Traders have seen this pattern before. In November 2025, Buterin’s praise for ZKsync’s work sent ZK up more than 50% in a single day. The token now trades well below where that rally peaked.

Theaikenspace
2026/10/15 17:30
Market Updates (October 15, 2026)
Notable coins that have been rising (with reasons)
🔹ZKsync ($ZK ): Frequently listed among the strongest gainers in the top 200 by market cap (reports of roughly +12–18% in 24 hours in various windows, with strong multi-day performance).
Why: Ethereum co-founder Vitalik Buterin publicly praised ZKsync’s Airbender Prime prover (announced around October 13). It reportedly proved 99% of 7,200 consecutive Ethereum mainnet blocks in under 10 seconds each on a single NVIDIA GPU. Buterin said the zkEVM “speed race is definitively won” and that focus should shift to security/formal verification. This high-profile technical validation and endorsement drove buying.
🔹
Pyth Network ($PYTH ): Strong gainer (reports of +15–20% in 24-hour windows in some trackers; also highlighted as a top performer).
Why: The Pyth DAO approved the “100% Rule” (effective around early/mid-October), directing all eligible product revenue to monthly open-market PYTH buybacks for the reserve (previously a lower share). This coincided with strong Q3 2026 revenue growth (ARR $11.49 million, up 86.5%) and partnerships (including AI/data integrations). The buyback mechanism ties token demand more directly to platform performance.
🔹Starknet ($STRK ): Appeared among notable gainers in multiple 24-hour lists (roughly +15% range in some reports) after a stronger weekly run.
Why: Ongoing speculation around a potential shift from an Ethereum Layer-2 to an independent Layer-1, partly to accelerate quantum-resistant cryptography (comments from StarkWare leadership, including CEO Eli Ben-Sasson). Recent network upgrades (e.g., expanded proving capabilities) and sector interest in privacy/security narratives also supported it. Note that a token unlock was scheduled around this date, which can create two-sided pressure.
🔹Celestia (TIA): Listed among stronger mid-cap performers (reports of roughly +12–15% in some windows).
Why: Adoption/integration catalysts (including use as a data-availability layer by platforms such as Derive V3) and continued interest in modular blockchain/data-availability narratives, plus residual momentum from recent upgrade cycles.
Other names include certain AI/meme-adjacent or niche tokens, plus occasional mild resilience in assets like TRON (TRX). These tend to move more on thin liquidity, narrative rotation, or short-term speculation and are less tied to clear fundamental catalysts than the ones above.
Crypto prices move fast, especially on news days and 24-hour figures differ across trackers and exact timestamps. Many of these assets remain highly volatile and can reverse quickly.
This is not financial advice. Always do your own research, consider risk, and note that past or short-term performance does not predict future results. For the absolute latest prices, use the Bitget search engine.