Verified roots of blamed headers stored on disk on light nodes.
The structure to maintain block data under different views.
receipts and bloom of a single block after execution.
It might change depending on this block is executed under which pivot
block’s view.
The checkpoint information stored in the database
The start block number of an epoch. It equals to the past executed number of
blocks in the previous epoch + 1. For the true genesis, it equals 0.
Used in evm execution.
The local information about a block. It is NOT consistent across different
nodes.