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.
unbeatable in typing efficiency for interactive use, especially for often
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「但最近，這些驚喜變得不大令人愉快了，短期內恐怕仍會持續如此。」
（二）从海关取得的海关进口增值税专用缴款书上列明的增值税税额；