One clever approach is to place an upper bound on the number of times that a ZK credential can be used. For example, we might wish to ensure that a credential can be “shown” at most N times before it expires. This is analogous to extracting many different single-use credentials, without the hassle of having to make the Issuer and User do quite as much work.
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13:36, 3 марта 2026Экономика，更多细节参见爱思助手下载最新版本
外交部发言人3月2日披露，已经有3000余名中国公民自伊朗撤离。日前在伊朗首都德黑兰的一名中国公民在军事冲突中受到波及，不幸遇难。外交部此前提醒中国公民，“暂勿前往伊朗周边受到军事冲击的国家和地区”。
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