A block contains a batch of the ordered transactions , as well as other key data:

• Parent hash — The parent block hash, which chains the blocks.
• Block number — Block number, parent block number plus one.
• State root — Hash of the final state after execution of the block.
• Transaction accumulator root — The transaction accumulator root hash after executing this block.
• Block accumulator root — The hash after accumulating the IDs of all the previous blocks in order.