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Fusaka update: new cell proofs to cut l2 fees

Fusaka Update | Ethereum Shifts From Blob Proofs to Cell Proofs for Lower Costs

By

Maya Thompson

Oct 20, 2025, 07:23 PM

Edited By

Liam Murphy

3 minutes of duration

A graphic showing the transition from Blob Proofs to Cell Proofs with icons representing reduced transaction fees
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In a recent move, the Ethereum Foundation announced an important update to improve data availability and potentially lower Layer 2 transaction costs by switching from blob proofs to cell proofs. The implications of this transition have sparked varied reactions within the community.

What’s at Stake with the New Changes?

To be clear, this switch is aimed at enhancing the efficiency of data availability sampling. According to sources, effectively implementing cell proofs may lead to significant improvements in the network’s efficiency. A few users expressed optimism over this change, saying it could tighten up overall network functionality. One comment highlighted:

"Switching from blob proofs to cell proofs could actually tighten up DA efficiency if they pull it off right."

However, the path to cheaper transaction costs may not be as straightforward. Some people argue that lower costs are only relevant if there is enough real-world usage. A user noted the necessity for practical application:

"Cheaper L2 txs only matter if the network sees real usage."

Concerns Over Real-World Applications

Questions about the tangible impact of these updates are prevalent in community discussions. Users are calling for more clarity on which real-world projects are actively relying on Ethereum's updated protocols.

Developers are encouraged to adapt their code to utilize the new ComputeCellsAndKZGProofs() function post-fork. As changes unfold, effective communication from the Ethereum Foundation will be crucial in preventing disruptions for both users and developers.

Community Sentiment

The community's sentiments appear mixed, with some expressing hope that these changes will drive increased network activity while others remain skeptical about its impact on real-world applications. Here are a few sentiments:

  • β–³ A sizable portion of users believe the changes are promising but need real testing on the mainnet.

  • β–½ Critics remain unconvinced about Ethereum's current viability for real-world projects amidst the upgrade.

  • β€» "Gotta watch how this plays out on mainnet before calling it a game changer," commented a user.

Key Facts To Keep on Your Radar

  • πŸ’‘ The Ethereum Foundation urges developers to update software for compatibility with the new cell proofs.

  • πŸ”„ Implementing the update could mean significant shifts in how Ethereum handles data availability.

  • πŸ›  Developers must adapt coding practices to maintain functionality after the fork.

As the deadline for implementing these changes approaches, the community will be closely monitoring how well Ethereum navigates this pivotal transition. With the dynamics of crypto always in flux, can Ethereum live up to the hype surrounding this update?

What Lies Ahead for Ethereum

There’s a strong chance that as developers update their protocols for the new cell proofs, we might see a positive shift in transaction speeds and costs. Industry experts estimate that if at least 60% of developers align with the changes, Ethereum could genuinely improve its market position against competitors. However, the real test will occur once these updates are deployed on the mainnet, with optimists betting that a rise in transactional activity will validate the initiative. Without significant real-world use, the projected benefits may fail to materialize, leaving a good portion of the community watching closely for any signs of success or failure.

A Resilient Metaphor from the Past

Consider the evolution of mobile technology in the early 2000s. Just as cell phones transformed from mere communication tools to essential devices for daily life, Ethereum's shift from blob proofs to cell proofs shows a similar potential for change, albeit with its own unique hurdles. The skeptics back then questioned whether the rapid pace of adoption would stick. It took a few notable applications, like social media and mobile banking, to solidify mobile tech’s place in society. Just as that transformation required time and foresight, Ethereum's journey could unfold similarly, making each step critical toward realizing its broader implications.