Ethereum 
$1,776 co-founder Vitalik Buterin recently addressed ongoing discussions regarding Coinbase‘s Ethereum-based Layer-2 solution, Base. Buterin aimed to clarify claims related to centralization and user fund control, stating that although Base includes some centralized elements to enhance user experience, it fundamentally relies on Ethereum’s secure infrastructure. His statements coincided with Coinbase’s announcement of plans to further decentralize the network through the introduction of Base Token.
Buterin on Base’s Security Measures
In a post on his X account, Buterin emphasized that Base does not assume control over user funds. He explained that even if the network were to shut down, users could directly withdraw their assets through Ethereum’s main network. This approach aligns with L2beat’s definition of “Stage 1 security.”
Buterin elaborated on the operation of Layer-2 networks, explaining that the underlying smart contracts function on Ethereum’s first layer, which prevents theft and censorship of funds. Recalling the Soneium case as an example, he underlined that despite operators potentially closing a network, users would still have the option to reclaim their assets. This reinforces the notion that Layer-2 solutions serve as extensions of Ethereum’s existing structure.
Coinbase’s Rebuttal on Layer-2 Sequencer Definition
Conversely, Coinbase’s Chief Legal Officer Paul Grewal recently refuted claims suggesting that sequencer mechanisms in Layer-2 networks like Base should be classified as exchanges. He referred to the U.S. Securities and Exchange Commission’s (SEC) definition of an exchange, which entails platforms that bring buyers and sellers together over securities.
Grewal asserted that Layer-2 networks are versatile blockchains limited to processing transactions. Moreover, decentralized exchanges, automatic market makers, or open ledger systems built on Base represent entirely distinct structures. Drawing an analogy with Amazon AWS, Grewal argued, “If an exchange runs on AWS, does AWS qualify as an exchange? Certainly not.” He contends that these mechanisms play an essential role in ensuring the scalable and secure processing of transactions on Ethereum.
