Proving the integrity of digital evidence with time

This problem has created an opportunity to establish a new standard of secure and auditable timestamps that are represented electronically. In the course of the past two years, many providers and users of digital signature technologies have begun to understand the importance of using the same rigor in authenticating the source of the time as they have with authenticating an individual. This process utilizes the same types of public key infrastructure processes used by Certificate Authorities and combines this with the official world sources of time...

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