Blockchain networks use the PoW consensus technique to verify transactions and secure the network. PoW was first presented as a key component of the Bitcoin blockchain by its creator, Satoshi Nakamoto.
PoW requires users, known as miners, to solve challenging mathematical puzzles in order to add new blocks to the network. Other cryptocurrencies that use PoW consensus method include Litecoin (LTC)and Dogecoin (DOGE), amongst others.