World Chain said it will roll out full block access lists on its World Chain Mainnet on Aug. 17, positioning the Layer-2 network as the first production environment to stream EIP-7928 block access lists into every “flashblock.” The upgrade is intended to raise transaction throughput without expanding validator hardware requirements, using a parallel verification approach as blocks are still being assembled.
Key takeaways
- Move: World Chain plans to go live with streamed full block access lists on Aug. 17.
- Catalyst: The network will deploy EIP-7928-derived access list streaming through its flashblock architecture.
- Throughput goal: The company targets scaling to as much as one gigagas per second.
- Validator impact: Validation is designed to run in parallel while blocks are built, aiming to keep validator computing needs largely unchanged.
- Deployment method: Implementation will use a runtime flag rather than requiring a hard fork.
What World Chain is changing
World Chain’s announcement centers on how validators obtain and process block data. Full block access lists are structured records that capture the blockchain state each transaction reads from and writes to. According to the company, this information enables validators to verify independent transactions concurrently, rather than following a one-by-one sequence across a completed block.
Under the upgrade plan, World Chain extends the EIP-7928 specification by streaming the access list data every 200 milliseconds through its flashblock mechanism. The intent, World Chain said, is to allow validators to start verifying transactions before the block is fully built—reducing the time validators spend waiting for block completion and distributing the validation workload earlier in the block-building pipeline.
Why the architecture matters for throughput
World Chain said the core bottleneck in many validator workflows is that validators must verify transactions serially, completing transaction checks before they can confirm an entire block. By contrast, the company’s approach uses access list data to separate transactions into units that can be validated in parallel across multiple CPU cores.
The company also tied the upgrade to its performance objective: increasing throughput up to one gigagas per second while keeping validator hardware demands largely stable. World Chain argued that streaming access lists can improve how quickly validation can occur within the block construction cycle, rather than requiring additional compute capacity to handle more transaction volume.
Testing results and how the upgrade will roll out
World Chain said internal testing on its test networks indicated that validation latency remained largely stable as throughput increased, reaching up to one gigagas per second using standard cloud infrastructure. The company said the results suggest blockchain networks can raise transaction throughput without a proportional rise in validator computing resources.
From an operational standpoint, World Chain plans to introduce the feature via a runtime flag instead of a hard fork. The company said this differs from Ethereum’s planned implementation of EIP-7928 as part of the proposed Glamsterdam upgrade. World Chain’s runtime-flag approach is designed to let client operators upgrade ahead of the Aug. 17 mainnet rollout without requiring a coordinated network-wide upgrade.
Broader implications for Ethereum scaling
World Chain said the Aug. 17 rollout would mark the first production implementation of streamed EIP-7928 block access lists. The company framed the move as a contribution to Ethereum’s broader scaling efforts, with a focus on maintaining accessibility for independent validators while pushing higher throughput.
For investors following blockchain infrastructure and scaling narratives, the key implication is the engineering trade-off: increasing transaction processing capacity while attempting to avoid a costly validator compute escalation. If the approach performs as expected beyond test environments, it could strengthen the case for scaling techniques that improve verification efficiency rather than simply adding more hardware.
What to watch next includes World Chain’s mainnet activation on Aug. 17 and subsequent network performance reporting around validation latency, throughput consistency, and validator participation under the new runtime-flag configuration. Investors may also look for how Ethereum’s Glamsterdam pathway evolves, given that World Chain’s deployment method and timing are separate from Ethereum’s planned hard-fork-based rollout of EIP-7928.
