Driven by the growing demand for digital finance and cryptocurrencies, Ethereum has consistently pursued technological innovation through core upgrades. The Dencun upgrade, introduced to the Ethereum blockchain ecosystem, marks a significant turning point in addressing scalability and high transaction cost issues. A comprehensive analytical report published on March 11, 2026, by the Blockchain Research Group at the University of California, Berkeley (UC Berkeley) Computer Science Department, academically validated the practical effects of this upgrade. Many analysts regard it as a game-changing project capable of transforming the market through cutting-edge technological advancements. At the core of the Dencun upgrade is the introduction of 'data blobs.' This innovative technology is designed to enable Layer 2 (L2) solutions to execute transactions at a significantly lower cost by efficiently storing data on the mainnet. The UC Berkeley research team systematically collected and analyzed data on transaction throughput, average gas fees, and end-user experience across major L2 networks such as Arbitrum, Optimism, and Polygon following the upgrade. This analysis suggests that Ethereum has established a robust technological foundation to attract more users and developers to its platform. The findings from the UC Berkeley Computer Science Department's Blockchain Research Group are highly encouraging. According to the researchers, the average gas fees on Layer 2 networks have been reduced by up to 90% compared to pre-Dencun levels, playing a crucial role in enabling micro-transactions for individual users. This dramatically improves a situation where even small payments of just a few dollars were economically unfeasible due to high gas fees. For instance, if a $5 transaction previously incurred $3-4 in gas fees, it now costs around $0.3-0.4, making such transactions economically viable. Furthermore, major Layer 2 platforms like Arbitrum, Optimism, and Polygon have significantly enhanced transaction throughput under Ethereum's 'rollup-centric' strategy, while also implementing various technological initiatives to improve user experience. The UC Berkeley researchers confirmed that the improved transaction processing speed and stability of L2 networks have significantly increased the user capacity of the entire Ethereum ecosystem. This transformation is not merely about enhancing technical efficiency; it also holds significant meaning for broadening the Ethereum ecosystem and ensuring stability within the highly volatile cryptocurrency market. The Dencun upgrade is contributing to strengthening competitiveness within the blockchain ecosystem by maximizing technological synergy not only with Layer 2 networks but also with the Mainnet. In particular, the UC Berkeley research group assessed that the Dencun upgrade successfully enhanced direct user benefits in how Layer 2 solutions operate. This is because data blobs enable L2 solutions to store data on the mainnet at a lower cost, dramatically improving the economic viability of rollup technology. The researchers added that there is a high probability that market participation, previously limited by high gas fees, will improve. This improvement is particularly evident in specific use cases. In an environment where micro-transactions are routinely enabled, small businesses and individual developers will gain better cost competitiveness, and consequently, the adoption of Ethereum-based decentralized applications (DApps) is expected to accelerate. Specifically, gaming, NFT trading, micro-remittances, and micropayment-based content platforms are identified as major beneficiaries of the Dencun upgrade. Previously, high gas fees made it difficult for these services to achieve economic viability on the Ethereum mainnet, but now, through L2 solutions, they have become fully feasible business models. Another significant finding highlighted by the UC Berkeley researchers is that the Dencun upgrade strongly indicates the potential success of Ethereum's 'rollup-centric' roadmap. The Ethereum Foundation has long aimed for a structure where the mainnet serves as the foundational layer for security and data availability, while various L2 solutions handle actual transaction processing. The Dencun upgrade is considered proof that this vision is technically achievable. The researchers predict that more users and applications will migrate to L2 solutions in the future, which will enable sustainable growth for the entire Ethereum ecosystem. Impact of Layer 2 Solutions on the Korean Blockchain Sector Ethereum's rollup-centric strategy represents a unique approach to blockchain scalability. While other blockchain projects focus on increasing the processing speed of the main chain itself, Ethereum has chosen a strategy that prioritizes security while achieving scalability through L2 solutions. By providing the core infrastructure for this strategy, the Dencun upgrade has opened up the possi
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