Control logs automatically record all computer network activity on magnetic disk or tape devices and are a form of an electronic audit trail.

控制日志自动记录所有的电脑网络活动，对磁盘或磁带设备，并是一种形式的电子审计线索。

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Audit requirements are satisfied by including with every electronic document a separate certificate of completion and a legally binding audit trail with the identity of the signer, a time stamp, and location information.

FORBES: eSignature Serves The Public Sector