{HEAD ~ The system} monitors distribution networks, logs pertinent network and distributor information, generates network statistics, gathers evidence of content distribution, and notifies interested parties of the availability of content on {TAIL ~ file sharing networks} 
{ HEAD ~ The system } monitors distribution networks , logs pertinent network and distributor information , generates network statistics , gathers evidence of content distribution , and notifies interested parties of the availability of content on { TAIL ~ file sharing networks }
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