I feel stupid for not getting this but i have to ask. Does this mean that every user needs to be online solving the test at the same time in order to participate? It's the only semi-reasonable answer i am getting from this, even though it doesn't sound plausible or even reasonable. Please tell be i have been mistaken.
Its correct though might seem weird. Every Idena user on a planet needs to appear online at the same time and solve 5 flips in less than 2 minutes in order to prove their uniqueness. Consider it as a global online party.