April 2018
Intermediate to advanced
222 pages
5h 28m
English
Content preview from Solidity Programming Essentials
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Blocks
Blocks are an important concept in Ethereum. Blocks are containers for a transaction. A block contains multiple transactions. Each block has a different number of transactions based on gas limit and block size. Gas limit will be explained in detail in later sections. The blocks are chained together to form a blockchain. Each block has a parent block and it stores the hash of the parent block in its header. Only the first block, known as the genesis block, does not have a parent.
A typical block in Ethereum is shown in the following screenshot:
There are a lot of properties associated with a block, providing insights and metadata about ...