Austin, TX / World Chain Mainnet — World Chain today announced the launch of full block access lists, becoming the first production layer-2 blockchain network to stream EIP-7928 block access lists inside every flashblock. Rolling out on World Chain Mainnet on August 17, the feature is designed to address one of blockchain’s biggest scaling challenges: increasing transaction throughput without requiring validators to run increasingly powerful hardware.

As blockchain networks process more transactions, validators typically need more computing power to verify every block, creating a tradeoff between performance and decentralization. World Chain’s implementation enables validators to verify blocks in parallel while they are still being built, allowing the network to target throughput of up to one gigagas per second while keeping validator hardware requirements effectively unchanged.

Traditionally, validators must re-execute every transaction in a block sequentially before confirming its validity. Full block access lists instead provide a record of the blockchain state each transaction reads and writes, allowing independent transactions to be verified simultaneously across multiple CPU cores rather than one at a time.

World Chain extends the EIP-7928 specification by streaming access list data incrementally every 200 milliseconds through its flashblock architecture. Instead of waiting until an entire block has been produced, validators begin verifying transactions immediately as the block is assembled, reducing validation latency and spreading verification work throughout the block-building process.

Unlike Ethereum’s planned implementation of EIP-7928 as part of the future Glamsterdam upgrade, World Chain is deploying full block access lists today through a runtime flag rather than a hard fork. Client operators can upgrade ahead of the August 17 mainnet rollout without requiring a coordinated network-wide upgrade.

Internal benchmarking on World Chain test networks showed validation latency remained effectively stable even as throughput increased significantly, reaching up to one gigagas per second using standard cloud infrastructure. The results suggest that blockchain networks can increase throughput substantially without proportionally increasing the computing resources required to independently verify the chain.

The rollout represents the first production implementation of streamed EIP-7928 block access lists and contributes to Ethereum’s broader scaling roadmap. Beyond improving throughput, the implementation demonstrates an approach to scaling blockchain performance while preserving accessibility for independent validators — a key requirement for maintaining decentralized networks.