Full Node

Understanding Full Nodes

A full node refers to a computer or server that downloads and maintains the complete history of a blockchain.

It plays a crucial role in observing and enforcing the blockchain rules.

Full nodes validate transactions within blocks and store the necessary data to keep the blockchain operational. In contrast, light nodes utilize a reduced set of data.

Functioning of Full Nodes

A blockchain network consists of multiple nodes responsible for governing and upholding the rules of the blockchain.

The consensus mechanism employed by most blockchains, such as proof-of-stake or proof-of-work, requires each node to validate new transactions.

Once all nodes validate a transaction, a consensus is reached, and the transaction is appended to the blockchain.

Balancing Data Storage and Accessibility

A full node stores a comprehensive record of all previously validated transactions on the blockchain.

The data requirements for different blockchains vary depending on their size.

Full nodes fulfill a critical role in safeguarding the history of a blockchain.

With this historical record, a blockchain can be completely reconstructed, even in the event of a catastrophic failure.