The Ethereum Foundation has appointed Will Corcoran, Kev Wedderburn, and Fredrik as co-leads of its protocol cluster, following the departure of some of its prominent engineers.

 

“While Barnabé and Tim are moving on from the Ethereum Foundation soon, and Alex Stokes will be on sabbatical, the Protocol cluster, as it exists today, is in large part due to their work. Under their coordination, Protocol launched tracks and helped to ship Fusaka to mainnet in December 2025, introducing PeerDAS and raising the mainnet gas limit on the path to 200M and beyond,” the foundation wrote in a blog post.

 

“Tim, Barnabé, and Alex shaped Protocol in ways that will outlast their time as cluster leads. We are grateful, and we are looking forward to what each of them takes on next.”

 

What to Know About the New Co-Leads

Will Corcoran is a research coordinator within the protocol, with experience working on zkVM proving, post quantum consensus, and the Fast Confirmation Rule. He has also facilitated numerous community calls, breakout rooms, and in-person protocol events, giving him a deep understanding of how the protocol works.

 

Kev Wedderburn leads the zkEVM team in the protocol and has experience working at the intersection of research and engineering, while Fredrik leads the protocol’s security and has been deeply involved in cross-cluster work.

 

About the Protocol Cluster 

The protocol cluster, often called the protocol, is the core group within the Ethereum Foundation responsible for designing, researching, coordinating, and developing Ethereum's base layer, or L1, blockchain protocol. After its rebranding in 2025, it had one goal: to tackle Ethereum's biggest challenges.

 

To address these challenges, the protocol prioritizes three main areas: enhancing Ethereum's scalability, improving user experience, and strengthening the security and resilience of the Ethereum blockchain network.

 

The protocol also oversees several technical domains, including AllCoreDevs meetings, cryptography, prototyping, security, zkEVM, and peer-to-peer systems. It is currently working on Glamsterdam, the next major Ethereum L1 upgrade, which will introduce features such as enshrined proposer builder separation, known as ePBS under EIP 7732, and gas repricing to support higher gas limits.

 

The restructuring of the Ethereum protocol comes shortly after key figures in the foundation, Josh Stark, last month, and Tomasz K. Stańczak, more recently, left the protocol. Other developers within the foundation have also departed to join other Layer 1 blockchain projects such as Tempo.

 

 

Stablecoin issuer Circle has raised $222 million in a private presale of its Arc token, the native token of its institutional stablecoin-focused Layer 1 blockchain.

 

The presale was led by venture capital firm Andreessen Horowitz, which invested $75 million. Investors, including BlackRock, Apollo Global Management, Intercontinental Exchange, SBI Group, Janus Henderson Investors, Standard Chartered, General Catalyst, Marshall Wace, ARK Invest, IDG Capital, Haun Ventures, and crypto exchange Bullish, also participated in the funding round.

 

Speaking in an exclusive interview with CNBC, Circle CEO Jeremy Allaire said the company was building an operating system with multiple stakeholders and major companies that would run the infrastructure supporting the network and contribute to its governance.

 

Allaire also likened the Arc blockchain to a mobile operating system or cloud platform, saying the network was designed to allow major companies to build and operate infrastructure on the chain while participating in governance.

 

The Arc token has an initial total supply of 10 billion tokens. Circle has allocated 60% of the token supply to participants building, using, and contributing to the Arc blockchain. Circle itself will hold a 25% stake, enabling it to act as a validator for the network, while the remaining 15% has been allocated to a long-term reserve. The fundraising gives Arc a fully diluted network valuation of $3 billion. 

 

The launch of the Arc blockchain is aimed at expanding Circle’s business beyond USDC issuance, allowing the company to generate additional revenue from its stablecoin operations while owning and controlling the settlement and distribution infrastructure on which the USDC stablecoin operates. This would reduce Circle’s reliance on blockchains such as Ethereum and Solana, as well as its dependence on Coinbase.

 

Circle Publishes Its First-Quarter Stablecoin Report

Alongside the announcement of its successful presale round, Circle also released its first quarter report for this year, which highlighted strong momentum and adoption of its stablecoin.

 

According to the report, total revenue and reserve income for its USDC stablecoin reached $694 million, marking a 20% year over year increase. USDC on-chain transaction volume also surged to $21.5 trillion in the last quarter, representing a 263% year over year increase.

 

 

Although net income from continuing operations fell 15%, USDC in circulation grew 28% year over year to $77.0 billion by the end of the quarter. The report also highlighted the introduction of Agent Stack, a platform designed by Circle that allows AI agents to conduct autonomous financial transactions using USDC.