Hassan Maishera
World Chain has deployed full block access lists on its mainnet, becoming the first production Layer-2 network to stream EIP-7928 access-list data inside every flashblock.
In a press release shared with cryptowisser, the team said the implementation is designed to increase transaction throughput by enabling parallel verification while keeping validator hardware requirements largely unchanged.
Access Lists Enable Parallel Transaction Verification
Blockchain validators traditionally re-execute transactions sequentially when verifying a block. This approach can create bottlenecks as network activity and block capacity increase.
EIP-7928 block access lists provide validators with information about the accounts and storage locations that transactions will access. With this data available in advance, validators can identify independent transactions and process them in parallel.
World Chain’s implementation streams the access-list data incrementally every 200 milliseconds through its flashblock architecture.
This means validators can begin checking transactions while the block is still being constructed, reducing the amount of work left after the full block arrives.
The rollout builds on EIP-7928, an Ethereum proposal intended for inclusion in the network’s future Glamsterdam upgrade.
While the Ethereum proposal focuses on incorporating block access lists into the protocol, World Chain has extended the design by streaming the data continuously within each flashblock.
Deploying the feature on a live Layer-2 network provides an early test of how access lists could perform under production conditions before their planned implementation on Ethereum.
The rollout could therefore offer useful data to Ethereum developers working on methods to increase execution and verification capacity.
Runtime Flag Removes Need for a Hard Fork
World Chain introduced the feature through a runtime flag rather than a hard fork.
This approach allows client operators to activate the functionality by upgrading their software without requiring every participant to coordinate around a network-wide protocol change.
Avoiding a hard fork reduces the operational complexity associated with the deployment and makes it easier for node operators to adopt the new system.
It could also provide a more flexible path for testing and refining the technology as additional performance data becomes available.
Internal benchmarks conducted on World Chain test networks showed that validation latency remained broadly stable as throughput increased.
The network achieved processing capacity of up to one gigagas per second using standard cloud infrastructure. Gas measures the computational work required to execute blockchain operations, making gas processed per second an indicator of network throughput.
The test results suggest streamed block access lists could allow networks to process more activity without requiring a corresponding increase in the computing resources needed to verify the blockchain independently.
However, the feature’s longer-term performance will depend on how it operates under sustained mainnet traffic and across different client configurations.
World Chain’s launch represents the first production deployment of streamed EIP-7928 block access lists.
The implementation supports Ethereum’s broader scaling roadmap by demonstrating how networks could increase throughput while maintaining accessible hardware requirements for validators.
Keeping validation affordable is important for decentralization because steep hardware demands could limit participation to a smaller number of well-funded operators.
If World Chain’s mainnet deployment delivers results consistent with its test-network benchmarks, streamed access lists could provide Ethereum and other blockchain networks with a practical method for scaling transaction verification without compromising independent participation.
World Chain is a layer-2 network designed to make blockchain technology and its benefits accessible to everyone. Built with the OP Stack and integrated with the World protocol, World Chain is secured by Ethereum as an L2 and engineered for scalability as part of the Superchain ecosystem.
World Chain is uniquely enabled by World ID’s proof of human and built around stablecoin finance, international remittances, commerce and more. Anyone can explore and use apps with real-world utility on World Chain through compatible wallets, starting with World App.
World is positioned to be the world’s largest network of real humans, creating the only solution that can sustain uniqueness and privacy at the scale of seven billion people. The project was originally conceived by Sam Altman, Max Novendstern, and Alex Blania with the mission of empowering humans in the age of AI.
