The success of Sci-Hub, which relies on researchers passing on copies they have themselves legally accessed, shows the legal ecosystem has lost legitimacy among its users and must be transformed so that it works for all participants.
句子主干：The success of Sci-Hub shows
“…, which relies on, …“ 定语从句，修饰the success of Sci-Hub, 其中passing on copies，现在分词作后置定语，强调主动; … (that) they have themselves legally assessed 宾语从句，省略that.
“Shows that..” 引导宾语从句，the legal ecosystem… for all participants, 从句是一个完整的并列句，主干为，the ecosystem has lost legitimacy and must be transformed; among its users 是状语，”在用户之间”; so that… 引导目的状语从句，表示“以便”以便合法的生态系统能够为所有的参与者(用户)服务
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