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.
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“十五五”规划建议提出：“大力提振消费。”一个个水果新品种从“高价尝鲜”变成日常消费品，表明消费升级不只在购买力更强，也在供给侧更优。做优品质、做强品牌，让消费者在追求性价比的同时也能尝鲜选优，水果产业方能行稳致远，为美好生活增添更多甜蜜滋味。，这一点在heLLoword翻译官方下载中也有详细论述