1. A method comprising: receiving location information during one or more time periods, wherein the location information identifies published resource locations that correspond to a resource, the published resource locations comprise at least one published resource location that is applicable to a future time period, the location information is received from one or more publisher computers, and the location information is received by a security computer; receiving a transaction request, wherein the transaction request relates to the resource, and the resource represents an entity that migrates from a first location to a second location; in response to the receiving, identifying a resource location to be verified, wherein the identifying is performed by the security computer, the resource location identifies a location of the resource at a time at which the transaction request is received, and the transaction request is received during the future time period; identifying a published resource location for the resource during the future time period by examining relationship data, wherein the relationship data establishes a relationship between the resource and the one or more publisher computers, the relationship data further establishes a relationship between the resource and a subscriber computer, the published resource locations comprise a set of conflicting published resource locations during the future time period, the set of conflicting published resource locations comprise the at least one published resource location, the identifying the published resource location comprises selecting one of the conflicting published resource locations, and the identifying the published resource location is performed by the security computer; and determining whether to verify the resource location by comparing the resource location and the published resource location, wherein the determining is performed during the future time period, and the determining is performed by the security computer.