Module header 

Arbitrum header conversion for RPC responses.

Extracts Arbitrum-specific fields (sendRoot, sendCount, l1BlockNumber) from the consensus header’s mix_hash and extra_data fields.

Structs

ArbHeaderConverter

Converts consensus headers to RPC headers with Arbitrum extension fields.

Functions

l1_block_number_from_mix_hash

Extract L1 block number from header mix_hash (bytes 8-15).