Ethereum Under Scrutiny: 45% Validators, Sanctions, and Growing Censorship Concerns

The Ethereum network is facing increased scrutiny as a significant portion of its validators comply with sanctions regulations, raising concerns about potential censorship. Recent reports indicate that a substantial number of Ethereum blocks are now subject to OFAC (Office of Foreign Assets Control) compliance, sparking debate within the crypto community.

45% of Ethereum Blocks and MEV-Boost: A Closer Look

According to Lachan Feeney, CEO of Labrys, a blockchain development agency, approximately 45% of all Ethereum blocks currently being validated utilize MEV-Boost (Maximal Extractable Value) relay flashbots. This means these validators are adhering to US sanctions regulations. Feeney highlighted this figure in a recent analysis, stating that "around 45% of all Ethereum blocks now being verified use MEV-Boost relay flashbots and adhere to [US] sanctions." This dependence on MEV-Boost raises questions about the network\'s resilience to censorship.

Rising Censorship Concerns on Ethereum

The increasing compliance with OFAC regulations is fueling concerns about censorship on the Ethereum network. Over 25% of Ethereum blocks are now compliant with OFAC regulations, as observed on 30 de sept. de 2025. This level of compliance could potentially lead to the exclusion of certain transactions from the blockchain based on their perceived association with sanctioned entities.

What Does This Mean for Ethereum\'s Future?

The situation surrounding Ethereum validators, sanctions compliance, and potential censorship is rapidly evolving. The implications of this trend could significantly impact the network\'s decentralization and its ability to serve as a censorship-resistant platform. The community is actively discussing potential solutions to mitigate these risks and ensure Ethereum remains true to its core principles.