因为链块涉及大量关于以前的交易数据，因而时间戳服务器尽力保护以免盗用行为。

Because block chains involve an enormous amount of data regarding previous transactions, the timestamp servers make it incredibly difficult to forge a block chain.

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如果下一个记录层的用户数据的记录开始位置预先知道，在用户数据记录之前，在下一个记录层上形成保护块。

If a record start position of the user data is learned beforehand in the next recording layer, the guard block is formed on the next recording layer prior to the recording of the user data.

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