Measuring Ethereum’s Consensus Security and DA Layer Post-EIP-4844

This study measures Ethereum’s consensus performance and data availability before and after the EIP-4844 upgrade, using geographically distributed full nodes and top rollup transaction data. By analyzing latency, blob transaction handling, gas fees, and posted data sizes, the research reveals how the upgrade affected Ethereum’s role as a data availability layer. Findings highlight the impact on rollup costs, propagation times, and overall network efficiency, offering a data-driven look at Ethereum’s post-EIP-4844 landscape.