I noticed that many people get confused about what a validator is and how it actually works. In reality, it is a key figure in any blockchain that uses Proof-of-Stake. Simply put, validators are those who verify transactions and create new blocks, ensuring the security and integrity of the network.

Let's understand the basics. What is a validator in terms of functions? First, it is verifying the authenticity of each transaction — making sure everything complies with network rules and has the correct cryptographic signatures. Second, validators combine verified transactions into blocks and add them to the chain. And third — they participate in reaching network consensus, meaning they agree among themselves on which data is correct. They receive rewards for this work but also take responsibility for security.

Many confuse validators with miners, and that’s understandable — both are involved in verifying and creating blocks. But the difference is that miners operate in Proof-of-Work systems, where they need to solve complex mathematical problems. Validators, on the other hand, work in PoS networks, where everything depends on the amount of funds locked up. This is more energy-efficient and accessible.

If you decide to become a validator yourself, here’s what you need to do. First, choose a network — the most popular are Ethereum, Solana, Polkadot, and others. Then buy the necessary amount of cryptocurrency of that network, which will be your stake. Next, install client software, set up a node on your computer or server, and select a platform to operate on. After that, lock your crypto as a stake, join the network, and start verifying transactions. The main thing — follow the rules, otherwise you risk losing your funds.

But what is a validator in the context of delegation? If you don’t want to run a node yourself, you can delegate your funds to an experienced validator. Here, it’s important to consider several factors. Check what contribution they make to the development of the network, how large their own stake is, how long they’ve been operating without downtime. A good reputation in the community is also a sign of reliability. And of course, make sure they use serious security measures.

The process of becoming a validator varies across different chains, so always read the specific network’s documentation. But the essence is the same — validators are the backbone of the blockchain, ensuring its operation, security, and transparency. If you’re seriously interested, start by studying how your chosen network works, and then decide whether to become a validator or delegate your funds to someone else. On Gate, you can track various networks and their validators if you want to dive deeper into the topic.