专利名称：Method and device for accurately dating an
electronic document
发明人：Klaus Huber,Friedrich Toensing申请号：US08/8184申请日：19970317公开号：US05781630A公开日：19980714
摘要：In a method for verifying the instant that a transaction is implemented or that adocument is created, signed, sent and/or received, it is provided for a time marker to beinserted into the document in a tamper-proof manner, and for the time marker tocorrespond to a time stamp taken from a non-adjustable clock. An arrangement forperforming the method is also provided.
申请人：DEUTSCHE TELEKOM AG
代理机构：Kenyon & Kenyon
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