Proof of labor (PoW): With this protocol, The brand new node has to unravel a cryptographic puzzle. It requires finding a nonce equivalent to a hash consistent with the community’s requirements. The 1st node to complete the puzzle joins the community. This protocol is used in Bitcoin and Ethereum one.028. https://landeniqryd.onesmablog.com/5-simple-statements-about-energy-broker-services-explained-73593158