| 摘要 |
A technique for limiting the use of unauthorized digital content in a content-sharing network in which digital content is distributed as files ( 41 - 48 ), each of which comprises content information ( 33 ) and is associated with characteristic/verification information ( 31 ). The method comprises determining a first file ( 41 ) whose content information is copyrighted and repeatedly distributing a second file ( 43 - 48 ) in the content-sharing network, wherein the second file is associated with characteristic/verification information ( 31 ) that match the characteristic/verification information of said first file, and wherein the second file ( 43 - 48 ) comprises content information ( 33 ) that does not match the content information of the first file ( 41 ). |
