In blockchain networks, proof of work (PoW) is a consensus process used to verify transactions and protect the network. PoW has the following benefits:
The network is kept extremely secure by it.
It allows for a decentralized network.
It guarantees that every network user has an equal chance to validate transactions to earn rewards.
It offers a reliable network.
If you want to know about proof of work, then check out the below video for more information.