The location of the time stamp on the AC130 and AC160 is too high.

摄像机是有些大，但还是比较轻并且有良好的平衡，持续长时间拍摄也是没有问题的。

youdao

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