StarkWare’s new Stark Two (S-two) prover lets users generate cryptographic proofs directly on their devices. Blockchain company StarkWare has unveiled zero-knowledge (ZK) prover STARK Two (S-two), enabling enhanced privacy and verification on everyday devices like phones, laptops and browsers. The company said the new ZK prover allows users to generate complex cryptographic proofs from the client side. This means users can generate ZK-proofs directly on their devices instead of relying on a server or cloud infrastructure, opening the door for faster and more private applications across the internet. “S-two will bring STARK proving to everyday devices, and open the door for new real-world proving use cases,” said Eli Ben-Sasson, StarkWare co-founder and CEO, adding that the tool could empower the next wave of ZK applications. Read more
Taurus said the partnership would enable its expansion into Latin America, a region that ranks highly for cryptocurrency adoption. Fintech companies Taurus and Parfin have partnered to deliver blockchain infrastructure to financial institutions in Europe and Latin America — a move aimed at accelerating the adoption of crypto custody and settlement services across both regions. As part of the partnership, Taurus has integrated its product suite into Parfin’s institutional platform, creating an end-to-end solution for digital asset management, including custody, governance, and compliant token issuance, the companies announced on May 27. Financial institutions using the integrated Taurus-Parfin solution will gain access to custody and tokenization services, real-time wallet execution and a full range of trading capabilities. Read more
As part of its 24 million-share IPO, Circle will be offering 9.6 million shares of Class A common stock, while selling stockholders will offer the remaining 14.4 million shares. Circle, the issuer of USDC, the second-largest stablecoin by market capitalization, has launched an initial public offering (IPO) of 24 million shares of its Class A common stock, the company said on May 27. The firm has applied to list its Class A common stock on the New York Stock Exchange (NYSE) under the ticker symbol CRCL. As part of the offering, Circle is issuing 9.6 million shares of Class A common stock, the company said in a news release. The remaining 14.4 million shares of Class A common stock will be offered by selling stockholders. Circle is also expected to grant the underwriters a 30-day option to buy up to an additional 3.6 million shares of Class A common stock to cover over-allotments. Read more
The United Kingdom has seen the sharpest growth in new crypto users despite the country’s not adopting crypto regulation or its own “MiCA equivalent.” Update (May 27, 3:00 pm UTC): This article has been updated to add a comment by Gemini’s head of Europe. The United Kingdom is leading the world in increasing cryptocurrency ownership among its population in 2025, outpacing economies including the United States, according to a new study by Gemini. Gemini, the US-based crypto exchange founded by Cameron and Tyler Winklevoss, on May 27 released its latest “State of Crypto” report, giving insights into changes in the global adoption of cryptocurrencies like Bitcoin (BTC). Read more
Data suggests that Bitcoin’s buyers are exhausted following the rally to $111K, but traders still say BTC has the strength to race toward $150K. Key takeaways: Bitcoin’s RSI has dropped 15% and is now below the overbought threshold. Bitcoin futures flip bearish with a 43% decline in perpetual CVD. Read more
A second person suspected of being tied to the alleged kidnapping and torture of an Italian man for his crypto will surrender to New York City police, according to multiple reports. A second person suspected of being involved in a high-profile crypto kidnapping case in New York City is expected to turn himself in to police, according to several reports. The second man is a Swiss crypto investor who allegedly assisted business partner Joel Woeltz, who is accused of kidnapping Michael Valentino Teofrasto Carturan and torturing him in a Soho apartment in an attempt to pressure him into revealing his crypto wallet phrase, ABC7 New York reported on May 26. A separate NBC report said the Swiss trader — who is not named — would turn himself over to police within a week. However, FOX5 New York reported that the man may already be in custody, citing conflicting sources. Read more
BitVM smart contract system is now supported by Bitcoin mining pools controlling 31.5% of the network’s hashrate. Bitlayer’s Bitcoin smart-contract system is being implemented by mining pools behind 31.5% of the network’s hashrate, a development that will help ensure that its system will operate on the Bitcoin blockchain, the company said. According to a May 27 announcement shared with Cointelegraph, Bitlayer’s BitVM implementation will be supported by major Bitcoin (BTC) mining pools including Antpool, F2Pool, and SpiderPool. Antpool CEO Andy Chow said: BitVM (Bitcoin Virtual Machine) is a framework that enables complex smart contracts to be deployed on the Bitcoin blockchain without changing the base protocol. The idea was introduced by Robin Linux in 2023, and allows for the complex computation involved in smart contract systems to be verified onchain and executed offchain in a way resembling optimistic rollups. Read more