Megaupload's mode of operating showed there was an "executive conspiracy" to commit copyright violation, the United States has told the Supreme Court.
It also showed those facing extradition - Kim Dotcom, Mathias Ortmann, Bram van der Kolk and Finn Batato - clearly understood they had pirated material and the website needed it to function.
Crown lawyer Fergus Sinclair, acting for the US, put Megaupload's rewards programme at the centre of proving a criminal conspiracy to violate copyright for financial gain.
The US submissions at the Supreme Court in Wellington go to the US indictment which included charges beyond copyright breaches, including conspiracy to breach copyright and alleged crimes often a feature of organised crime prosecutions.
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