Systems, apparatus, and methods are described for checkpoint summary based monitoring for an event candidate within a wireless node network of ID nodes, a master node, and a server. Such a method, for example, may have the master node receiving a first set of advertising signals broadcast by an ID node and generating a first checkpoint summary representing the first set of received signals. The master node then receives a second set of advertising signals broadcast by the ID node (after the ID node broadcasts the first set) and generates a second checkpoint summary representing the second set of received signals. The method then identifies the event candidate based upon a comparison of an observed parameter for each of the first checkpoint summary and the second checkpoint summary; and reports to the server a message about the event candidate relative to the ID node.