Published on:

August 29, 2022
What are lightweight nodes in blockchain? Advantages and Disadvantages


In the 21st century, the majority of industries are adopting blockchain technology. Whether it be healthcare, supply chain, finance, energy, media, logistics, power, and entertainment, every sector is harnessing the characteristics it possesses. 

Blockchain technology is a distributed digital ledger that is maintained on nodes. Typically, a node acts as the backbone of a blockchain’s infrastructure that helps store, verify, broadcast, and distribute data to other nodes. Let’s quickly brush up on the concepts of nodes and learn in-depth what lightweight nodes are. 

What is a blockchain node?

Nodes are an essential part of blockchain’s infrastructure that helps access information. Nodes are devices that work as a communication hub for various network tasks. The chief responsibility of a node is to confirm the legality of each subsequent batch of network transactions, known as blocks. A node ensures the data it holds is secure, valid, and accessible to the allowed people.

Simply put, a node is any system that connects to a network to perform specific duties across communication channels. The nodes operating within the network are interconnected and transfer all the information about transactions and new blocks. Also, it is easy to distinguish a node from other nodes by allocating a unique identifier to each node in the network.

Learning about different blockchain nodes is essential as most people confuse ‘node’ with a full node. However, they hold different meanings and seven types of nodes exist in the ecosystem. They are lightweight nodes, archival full nodes, lightning nodes, master nodes, pruned full nodes, authority nodes, and mining nodes. For this blog, we will keep our focus on lightweight nodes.

What is the purpose of running a blockchain node?

Nodes enhance security, maintain integrity, and provide credibility to the network. The node has unique features and helps to verify the network transactions. In short, nodes help provide trust and integrity to the blockchain and allow people to harness its true potential. 

A network with more nodes helps instill a sense of reliability among stakeholders. It can be resilient to all kinds of attacks, hacks, and problems because of multiple blockchain nodes. You may need only one node to start a complete blockchain ledger to the new network.

What are lightweight nodes?

Lightweight nodes or Lightweight nodes are downloaded wallets connected to full nodes for validating the data stored on the blockchain. Simple Payment Verification (SPV) node or lightweight node is used in day-to-day crypto operations.

The contrasting difference is that they are smaller and only hold data about partial blockchain histories. Contrary, full nodes are a single copy of the blockchain history, including the timestamps, transactions, and all created blocks.