Role of nodes

Andreas Antonopoulos is one of the best educators in the Bitcoin space and has an incredible amount of content freely available on his YouTube channel. In this video he explains what the role of nodes are in the Bitcoin network.

Creator	Time	URL
Andreas Antonopoulos	8min	Full source

There is a lot of terminology in the video that you are most likely unfamiliar with. The most important takeaway is that nodes play a crucial role in verifying transaction data that is shared on the network. They all maintain their own copy of the bitcoin ledger (also referred to as the blockchain) and they all play by the same rules using the Bitcoin core software.