现时标志通常能实现为计数器(一个序列数)或者时间戳。
Typically, the nonce can be implemented as a counter (a sequence number) or as a timestamp.
可能在本例中，我们可以使用一个时间戳或仅为每个参赛者增加一个计数器，比如runner_1、runner_2等。
Perhaps in this case, we could use a timestamp or just increment a counter for each runner, such as runner_1, runner_2, etc.
可能在本例中，我们可以使用一个时间戳或仅为每个参赛者增加一个计数器，比如runner_1、runner_2等。
Perhaps in this case, we could use a timestamp or just increment a counter for each runner, such as runner_1, runner_2, etc.
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