The next method that we are going to add to our blockchain data structure is the proofOfWork method. This method is very important and essential to the blockchain technology. It is because of this method that Bitcoin and many other blockchains are so secure.
Now, you must be getting curious about what a Proof of Work (PoW) actually is. Well, if we take a look at our blockchain, every blockchain is pretty much a list of blocks. Every single block has to be created and added to the chain. However, we don't just want any block to be created and added to the chain. We want to make sure that every block that is added to the chain is legitimate, has the correct transactions, and has the correct data inside of it. This is because if it doesn't have the correct transactions or the correct data, then people could fake how much Bitcoin they have and essentially...
