Retrieving block information from the Ethereum blockchain can be done by using the following methods:

This information can be used to track the state of the blockchain and for:

• Blockchain analysis — insights into the overall activity on the network, such as the number of processed transactions and average transaction fees, can be obtained.
• Block explores — web-based tools that provide access to information on a blockchain, including block data, transactions, and addresses, allowing users to search, view, and analyze the network’s activity.
• Smart contract analysis — the activity of specific smart contracts
• DApp development — block information can be utilized in the development of decentralized applications.