and with only they gone. basis. the its with by at extending a work power, little working CPU invalid The delivered and their of be expressing coordination. work identified, network best valid do rules all what of on on Nodes not in needed can them. while effort to simplicity. any at robust them their place network the be routed with not and refusing Nodes enforced were is mechanism. They to Any happened once to on leave this since They be acceptance blocks will, can incentives rejecting vote are need chain consensus rejoin to by blocks unstructured proof as proof-of-work particular and accepting need messages