Mastering Blockchain - Second Edition

Tasks of the miners

Once a node connects to the bitcoin network, there are several tasks that a bitcoin miner performs:

1. Synching up with the network: Once a new node joins the bitcoin network, it downloads the blockchain by requesting historical blocks from other nodes. This is mentioned here in the context of the bitcoin miner; however, this not necessarily a task only for a miner.
2. Transaction validation: Transactions broadcasted on the network are validated by full nodes by verifying and validating signatures and outputs.
3. Block validation: Miners and full nodes can start validating blocks received by them by evaluating them against certain rules. This includes the verification of each transaction in the block along with verification of ...