[Ethereum Block Builder Eureka Labs Completes $6.7 Million Financing, Led by Spark Capital and Collider Ventures] Odaily Planet Daily News: Ethereum block builder Eureka Labs announced the completion of a $6.7 million seed round financing, led by Spark Capital and Collider Ventures. The company has introduced the concept of 'programmable blocks' during the block-building phase, incorporating executable logic so that blocks not only package transactions but also enable more complex functionalities, such as temporary fund calls, advanced computations, and more precise transaction sequencing. Eureka Labs was founded in December 2024 and has now become the fourth-largest block builder on Ethereum, though its market share is approximately 1.5%, showing a significant gap compared to leading builders. This round of financing was completed in two stages: $4.7 million was raised in April 2025, followed by an additional $2 million in June. The company stated that the funds will be used to expand its block-building technological capabilities and promote the application of 'programmable blocks' within the Ethereum ecosystem.