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Optimal -- no redundant tests, good code
，更多细节参见雷电模拟器官方版本下载
Final Output: 给出完美的逻辑链条解释。
When a client asks for the time, it sends a random nonce. The server replies with a signed certificate containing both the nonce and a timestamp, proving the response happened after the request. Responses can be chained together with provable ordering; if any server’s timestamps are inconsistent with that ordering, that server is cryptographically “outed” as unreliable.
Secret calls and code names: How money makes it to N Korea