Lookonchain APP

App Store

Zcash Completes NU 6.2 Hard Fork, Fixing Orchard Pool Bug

1 hours ago

June 3 – In an official announcement from the Zcash (ZEC) Foundation, independent security researcher Taylor Hornby discovered a critical reliability flaw in Zcash’s Orchard zk-SNARK circuit on May 29, a vulnerability that could have allowed double-spending within the Orchard pool. ZODL core engineers confirmed the issue within hours and initiated a fix promptly. To buy time, they temporarily disabled Orchard operations via an emergency soft fork in Zebra 4.5.3 in the early hours of June 2. Finally, on June 3, the team activated the NU6.2 hard fork through Zebra 5.0.0. At 12:05 PM Beijing time, the mainnet completed the upgrade seamlessly at block height 3,364,600. Orchard was re-enabled with the patched circuit, and the vulnerability was permanently closed. This marks the second protocol upgrade Zcash has rolled out to address a security issue since its launch in 2016. No known exploits occurred throughout the process, and the network’s shielded pool mechanism ensured the total coin supply remained intact, safeguarding user privacy, the Sapling protocol, and transparent transactions.
Relevant content

「Huang Renxun's Stock Selection」 NVTS Surges Over 28% in Pre-market Trading, Joins NVIDIA's MGX AI Factory Ecosystem

June 3 Update: According to Bitget market data, Navitas (NVTS) expanded its pre-market trading gains to over 28%, with the stock price topping $31 and market capitalization exceeding $7.2 billion. Navitas is included in NVIDIA’s AI Factory full-industry chain stock pool. The company recently announced its official entry into the NVIDIA MGX AI Factory ecosystem, where it will deliver high-efficiency power solutions for NVIDIA’s next-generation AI servers and rack-level platforms. Leveraging Gallium Nitride (GaN) and Silicon Carbide (SiC) power device technology, Navitas focuses on supporting NVIDIA’s 800VDC high-voltage direct current (DC) distribution architecture. This architecture significantly boosts power conversion efficiency, cuts energy consumption, and increases power density—enabling AI data centers to achieve higher performance while lowering operating costs.

5 minutes ago

Variant Completes $222 Million New Fundraise to Invest in Early-Stage AI and Crypto Projects

June 3rd: Leading crypto and AI investment firm Variant announced it has closed its Variant 4 fundraising, hitting a total size of $222 million. The fund will continue to focus on early-stage investments and provide long-term support to its portfolio companies, with a core investment theme centered on “AI + Crypto + Autonomy.” Variant founder Jesse Walden stated that the traditional “crypto investor” label will gradually disappear, as the industry shifts toward a unified broader theme of “autonomy.” This encompasses any application that grants users greater sovereignty—such as decentralized finance (DeFi), cryptocurrency, and AI agents. Walden added that cryptography will serve as foundational infrastructure, and its decentralized principles will gain renewed relevance in the AI era, particularly in the intersection of AI agents and blockchain technology. Previously, Variant’s first three funds focused solely on the pure crypto track, with high-profile investments in well-known projec

5 minutes ago

Kraken to Open Global Retail Access to US Stock IPO Pricing through xStocks

June 3 – Payward, the parent company of cryptocurrency exchange Kraken, announced it will launch a new channel in the coming weeks allowing Kraken users and customers of partner platforms to subscribe to U.S. public company initial public offerings (IPOs) at the official IPO price through its xStocks framework. Users can submit non-binding subscription intentions ahead of the target listing date. Payward will aggregate this demand, coordinate with the relevant underwriting syndicate, and allocate tokenized stock shares to qualifying participants at the IPO price on the day the shares start trading. Each associated stock token is backed on a 1:1 basis by its underlying regulated stocks, and can circulate on blockchains including Ethereum, Solana, and TON.

5 minutes ago

「Stock God」 Serenity Reaffirms NBIS as Neocloud's Track Champion, the Purest AI Infrastructure Asymmetric Opportunity

June 3: The so-called "Stock God" Serenity has published a post reviewing his bullish high-position call on AI infrastructure firm Nebius (ticker: NBIS), stating that NBIS is his "most confident pick in the Neocloud sector." The stock has rallied from roughly $84 last year to its current price of $260, with its sector judgment already validated by the market. Serenity reaffirmed that NBIS ranks first in the Neocloud segment, outperforming competitors such as IREN and CRWV. Back last November, when NBIS traded at around $86, Serenity released a detailed analysis identifying the company as "the purest asymmetric opportunity in the Neocloud and AI infrastructure space," noting it boasts the highest revenue target in the Neocloud sector. He highlighted that NBIS avoids critical pain points of its rivals: unlike IREN and ORCL, it faces no lingering uncertainties around full-stack execution; unlike CRWV and APLD, it carries no heavy high-interest debt load; and unlike CLSK, BITF and other p

5 minutes ago

IREN Surges Over 7.6% in Pre-market Trading, Signs Power Transmission Agreement to Support 800MW Data Center Campus Development

June 3: According to Bitget market data, AI cloud infrastructure company IREN’s pre-market trading price surged as high as 7.6% earlier, and is now up 5.6% with its shares crossing the $70 threshold. In an official disclosure, IREN announced it has signed a power transmission connection agreement to support its planned 800-megawatt data center campus for the Bungama project in South Australia. Power supply for the site is targeted to launch in 2028. This marks IREN’s first data center project in Australia, and one of the largest such facilities in the Asia-Pacific region to date. The agreement allows four 330-kilovolt feeders to connect to the power company’s substation, enabling transmission of up to 800 megawatts without requiring grid upgrades. IREN plans to kick off concurrent early-stage engineering and procurement work once it secures necessary regulatory approvals and meets all terms laid out in the power transmission agreement.

5 minutes ago

The US ADP Employment Change for May was 122,000, compared to an expected 117,000 and a previous value of 109,000.

June 3: The U.S. ADP Nonfarm Employment Change for May came in at 122,000, beating the consensus forecast of 117,000 and the prior print of 109,000. (FXStreet)

5 minutes ago