Ethrex, an Ethereum validator client (software that allows nodes to run, validate blocks, and participate in consensus) developed in Argentina, has managed to position itself among the best performing clients on the network.
This client was developed by the Lambda Class team headquartered in the South American country. This milestone was achieved on January 26, as reported by one of the main developers, Fede Intern, based on the results of tests on the main network.
Hours before the results were published, the Argentinian developer pointed out that recent updates to the ethrex code have improved the performance of Ethereum base layer tests by about 25%.
He also revealed that the results were equivalent to six hours of continuous testing.
This data was revealed from tests performed by our previous community environment, ethPandaOps. Evaluate client performance under real network conditions.
What do the performance indicators show?
As seen in the following graph, the panel compares the average execution time (in milliseconds) of different Ethereum clients. When processing new workloads.
In this context, ethrex appears second in the list, and its average time is close to that of Nethermind, the client at the top of the list. Aspi is preferred over other clients such as Geth, Besu, and Erigon, one of which is the most used client on Ethereum.
Client according to Vitalik Buterin’s wishes
According to the developers, the original aim of the project was to provide a smaller and simpler alternative for other clients without sacrificing reliability.
As reported by CriptoNoticias, Fede Intern itself believes: ethrex could be close to one of Vitalik Buterin’s recent proposals– A simpler Ethereum network.
Along these lines, the ethrex repository emphasizes as its core features a reduced codebase, a focus on technical clarity, and a modular design designed to facilitate auditing and maintenance.
Argentina team wants changes to Ethereum engine
In parallel, the Lambda Class team is participating along with Aligned Layer and 3MI Labs. In the development of zero-knowledge virtual machines (zkVM). Software that allows you to run a program and verify its correctness using cryptographic proofs without revealing the underlying data.
The zkVM machine is based on RISC-V, an open and standardized processor architecture, and aims to create a simpler, more well-documented, and more efficient implementation than current alternatives for both developers and auditors.
As reported by CriptoNoticias, the use of RISC-V to replace the current Ethereum Virtual Machine (EVM) was proposed by Vitalik.
(Tag Translation) Argentina

