EthCC Cannes Based Rollup Summit Reveals 10 Industry Trends

As global developers gather in Paris for EthCC 2025, Taiko—the first based rollup scaling solution on Ethereum—successfully held the second Based Rollup Summit in early July in Cannes, France, continuing to drive the exploration of Ethereum’s scaling future.

Core figures from the Ethereum Foundation, Celo, SSV Network, Boundless, and other ecosystems gathered to engage in in-depth discussions on based rollup technology, preconfirmations, and the continuously evolving Ethereum ecosystem.

Here are 10 key points from this summit:

1. Pre-confirmation is everywhere - even buying coffee uses it Taiko’s Chief Operating Officer Joaquin Mendes opened the summit with a relatable example, emphasizing that pre-confirmation is not a foreign concept, but rather a mechanism that we use in our daily lives.

“Pre-confirmation has actually always existed, even when you go buy a cup of coffee.” Mendes provided an in-depth explanation of the pre-confirmation mechanism’s working principle, and how it makes users’ trading experience on Taiko smoother and faster, while laying the groundwork for understanding its key role in Ethereum scaling.

2. The Future of ZK: Instead of Competing on Technology, Focus on Solving User Needs Boundless CEO Shiv Sankar shared his views on the future of zero-knowledge (ZK) technology, emphasizing that what truly matters is not the competition of technology, but whether it can create value for users.

   “The key is to understand what users really need - and then use ZK technology to meet those needs.”

He pointed out that the main competitors of Web3 are not other chains, but traditional tech giants like Amazon. The real challenge lies in understanding user behavior and creating products that users are willing to pay for.

3. URC integration allows validators to easily access based services SSV Network CEO Alon Muroch introduced the Universal Registry Contract (URC), and explained how SSV lowers the registration threshold for validators through programmatic integration, helping them participate in based rollup services.

“Now, most transactions occur on L2, rather than the Ethereum mainnet. This is a huge opportunity for both validators and rollups.” The SSV client has integrated URC, allowing validators to quickly complete registration without cumbersome operations, making the process just as convenient whether managing 10 nodes or 10,000 nodes.

4. Why doesn’t Ethereum shorten the block time? What is the value of the pre-confirmation mechanism? Taiko CEO Daniel Wang responded to a common question: Since the goal is a faster user experience, why not directly reduce Ethereum’s block time to 1-2 seconds?

“The goal of Taiko is to reduce the block time from 12 seconds to below 2 seconds. But some may ask, why doesn’t Ethereum do this itself?” He pointed out that Ethereum currently has over 1 million validators, and sub-second consensus will impose extremely high demands on hardware and synchronization, likely compromising its decentralization and accessibility. Therefore, based preconfirmation is a more realistic solution that aligns with the spirit of Ethereum.

5. What are the key metrics for measuring the success of based preconfirmation? Several attending guests jointly proposed the key indicators for measuring the success of based preconfirmation:
   • There is a based rollup that is running online;
   • The pre-confirmation function successfully integrated with L1 proposer;
   • At least 20% of the staked rights choose to join this mechanism. At the same time, the significant reduction in transaction fees and the practical optimization of user experience are also seen as core signals for assessing the feasibility of the solution.
6. Building the Future for Enterprises and Privacy Tomasz K. Stanczak, Co-Executive Director of the Ethereum Foundation, emphasized that to achieve mainstream adoption, the strategic focus should be on enterprise implementation and privacy protection.

“We are not directly building the final product for users. End users will access through Web2 platforms, while the underlying must be a truly trustworthy blockchain.” He believes that supporting enterprises to participate in and promote compliance cooperation is the key path to unlocking the global mainstream market.

7. Ethereum narrative needs to be upgraded Celo CEO Marek Olszewskii raised a thought-provoking question:

“Did we attract the wrong crowd?” He stated that in order to attract institutional investors and ordinary users, Ethereum needs to build a clearer and more appealing narrative - not just as a “smart contract platform”, but as an asset ecosystem that can generate returns and possesses unique value.

8. Horizontal Scaling: The Only Future for Ethereum Scaling Ethereum Foundation researcher Justin Drake clearly pointed out that the vertical scaling potential of Ethereum is nearing its limits, and the next step must shift towards horizontal scaling.

“We must scale horizontally, there is no other choice. Even if we are a second faster, it is still far from enough.” He believes that solutions such as shared sequencing and more efficient SNARK verification will enable rollups to complete settlements in every time gap, helping Ethereum move out of its “teenage years.”

9. Booster Rollup: An Innovative Scaling Paradigm Taiko co-founder and CTO Brecht Devos proposed a new concept of Booster Rollup, emphasizing its differences from traditional solutions.

“Most contracts are deployed on L1, but each rollup can directly link to the mainnet.” This means that L1 contracts can be directly called on L2, achieving automatic scaling without sacrificing composability.

10. True Scalability: Achieving Internet-Level Availability At the end of the summit, Avail’s business head Kyle Rojas, Gastuvo from OpenZeppelin, and Luban co-founder Harry Gao discussed a fundamental question: What is the ultimate goal of scalability?

“Can we really scale to the level of the internet? Can we support the kind of user experience that ordinary users take for granted?” They unanimously believe that true blockchain scalability is not only about increasing TPS but also about establishing a globally accessible system that upholds the core principles of decentralization, censorship resistance, and security.

Finally

From the pre-confirmation mechanism to Booster Rollup, these cutting-edge practices promoted by Taiko are outlining a truly scalable, practical, and globally viable new future for Ethereum - and this is just the beginning.

(BlockBeats)