Proof of labor (PoW): In this protocol, the new node has to resolve a cryptographic puzzle. It involves getting a nonce similar to a hash in step with the network’s conditions. The main node to accomplish the puzzle joins the network. This protocol is Employed in Bitcoin and Ethereum 1.028. https://roleofenergybrokers79000.life3dblog.com/32063238/a-secret-weapon-for-energy-contract-negotiation