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ZKsync’s Airbender zkVM Proves Ethereum Blocks in 35 Seconds

Matter Labs, the developer firm behind the layer-2 network ZKsync, unveiled at the Permissionless conference its new cryptographic prover «Airbender» on Tuesday.
A prover is a key component for layer-2s, as it generates zero-knowledge proofs that are then posted to the base layer blockchain (in this case Ethereum) — a crucial process in linking the two chains and ensuring its security.
The ZKsync team claims that Airbender is the fastest of its kind, delivering Ethereum block proofs in 35 seconds with a single GPU, outpacing its competitors benchmarks.
Having fast speeds can save on transaction fees: “we’re entering fraction of a cent territory which is critical for key use cases, including micropayments, high-frequency trading, and decentralized social,” said Alex Gluchowski, the co-founder of Matter Labs, in an interview with CoinDesk. “Faster proofs unlock faster finality, cheaper apps, and crucially, proofs that can be generated anywhere, not just in massive GPU farms.”
The new prover, which is an open-sourced zero-knowledge virtual machine (zkVM), is based on RISC-V, a newer programming framework that Ethereum co-founder Vitalik Buterin has suggested to replace the current EVM, because it will make the blockchain more efficient.
“We started building ZKsync Airbender over a year ago because we saw where Ethereum needed to go, and what ZK apps would eventually demand,” said Gluchowski. “Vitalik’s recent post was a great affirmation of our plans, but this path has been in motion for a while.”
While Airbender is still early in its rollout, Matter Labs has released an app that lets developers test out the new prover. If all goes according to plan and the ZKsync governance process approves it, Airbender will be included in a protocol upgrade later this summer, according to Gluchowski.
“ZKsync Airbender proves Ethereum blocks in 35 seconds using a single GPU. That’s the start of something ground-breaking: home-proving, real-time cross-chain UX, and ZK apps that can verify on the fly. This is the foundation for an Internet of verifiable, interconnected chains,” Gluchowksi said.
Read more: Vitalik Buterin Proposes Replacing Ethereum’s EVM With RISC-V
Business
Crypto Trading Firm Keyrock Buys Luxembourg’s Turing Capital in Asset Management Push

Crypto trading firm Keyrock said it’s expanding into asset and wealth management by acquiring Turing Capital, a Luxembourg-registered alternative investment fund manager.
The deal, announced on Tuesday, marks the launch of Keyrock’s Asset and Wealth Management division, a new business unit dedicated to institutional clients and private investors.
Keyrock, founded in Brussels, Belgium and best known for its work in market making, options and OTC trading, said it will fold Turing Capital’s investment strategies and Luxembourg fund management structure into its wider platform. The division will be led by Turing Capital co-founder Jorge Schnura, who joins Keyrock’s executive committee as president of the unit.
The company said the expansion will allow it to provide services across the full lifecycle of digital assets, from liquidity provision to long-term investment strategies. «In the near future, all assets will live onchain,» Schnura said, noting that the merger positions the group to capture opportunities as traditional financial products migrate to blockchain rails.
Keyrock has also applied for regulatory approval under the EU’s crypto framework MiCA through a filing with Liechtenstein’s financial regulator. If approved, the firm plans to offer portfolio management and advisory services, aiming to compete directly with traditional asset managers as well as crypto-native players.
«Today’s launch sets the stage for our longer-term ambition: bringing asset management on-chain in a way that truly meets institutional standards,» Keyrock CSO Juan David Mendieta said in a statement.
Read more: Stablecoin Payments Projected to Top $1T Annually by 2030, Market Maker Keyrock Says
Business
Crypto Trading Firm Keyrock Buys Luxembourg’s Turing Capital in Asset Management Push

Crypto trading firm Keyrock said it’s expanding into asset and wealth management by acquiring Turing Capital, a Luxembourg-registered alternative investment fund manager.
The deal, announced on Tuesday, marks the launch of Keyrock’s Asset and Wealth Management division, a new business unit dedicated to institutional clients and private investors.
Keyrock, founded in Brussels, Belgium and best known for its work in market making, options and OTC trading, said it will fold Turing Capital’s investment strategies and Luxembourg fund management structure into its wider platform. The division will be led by Turing Capital co-founder Jorge Schnura, who joins Keyrock’s executive committee as president of the unit.
The company said the expansion will allow it to provide services across the full lifecycle of digital assets, from liquidity provision to long-term investment strategies. «In the near future, all assets will live onchain,» Schnura said, noting that the merger positions the group to capture opportunities as traditional financial products migrate to blockchain rails.
Keyrock has also applied for regulatory approval under the EU’s crypto framework MiCA through a filing with Liechtenstein’s financial regulator. If approved, the firm plans to offer portfolio management and advisory services, aiming to compete directly with traditional asset managers as well as crypto-native players.
«Today’s launch sets the stage for our longer-term ambition: bringing asset management on-chain in a way that truly meets institutional standards,» Keyrock CSO Juan David Mendieta said in a statement.
Read more: Stablecoin Payments Projected to Top $1T Annually by 2030, Market Maker Keyrock Says
Business
Gemini Shares Slide 6%, Extending Post-IPO Slump to 24%

Gemini Space Station (GEMI), the crypto exchange founded by Cameron and Tyler Winklevoss, has seen its shares tumble by more than 20% since listing on the Nasdaq last Friday.
The stock is down around 6% on Tuesday, trading at $30.42, and has dropped nearly 24% over the past week. The sharp decline follows an initial surge after the company raised $425 million in its IPO, pricing shares at $28 and valuing the firm at $3.3 billion before trading began.
On its first day, GEMI spiked to $45.89 before closing at $32 — a 14% premium to its offer price. But since hitting that high, shares have plunged more than 34%, erasing most of the early enthusiasm from public market investors.
The broader crypto equity market has remained more stable. Coinbase (COIN), the largest U.S. crypto exchange, is flat over the past week. Robinhood (HOOD), which derives part of its revenue from crypto, is down 3%. Token issuer Circle (CRCL), on the other hand, is up 13% over the same period.
Part of the pressure on Gemini’s stock may stem from its financials. The company posted a $283 million net loss in the first half of 2025, following a $159 million loss in all of 2024. Despite raising fresh capital, the numbers suggest the business is still far from turning a profit.
Compass Point analyst Ed Engel noted that GEMI is currently trading at 26 times its annualized first-half revenue. That multiple — often used to gauge whether a stock is expensive — means investors are paying 26 dollars for every dollar the company is expected to generate in sales this year. For a loss-making company in a volatile sector, that’s a steep price, and could be fueling investor skepticism.
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