ethereum.forks.amsterdam.block_access_lists.rlp_utils

Utilities for working with Block Access Lists using RLP encoding, as specified in EIP-7928.

This module provides:

  • RLP encoding functions for all Block Access List types

  • Hash computation using keccak256

  • Validation logic to ensure structural correctness

The encoding follows the RLP specification used throughout Ethereum.

compute_block_access_list_hash

Compute the hash of a Block Access List.

The Block Access List is RLP-encoded and then hashed with keccak256.

def compute_block_access_list_hash(​block_access_list: BlockAccessList​) -> Hash32:
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    """
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    Compute the hash of a Block Access List.
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    The Block Access List is RLP-encoded and then hashed with keccak256.
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    """
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    return keccak256(rlp.encode(block_access_list))