[nSLUG] Timstamping a document

Vlado Keselj vlado at cs.dal.ca
Fri Oct 4 06:23:31 ADT 2013


It seems to me that itconsult.co.uk works by receiving document (maybe 
encrypted) and issuing a certificate.  So this is a third-party 
confirmation that a document existed at certain time.

Vlado


On Thu, 3 Oct 2013, Richard Bonner wrote:

> 
> On Thu, 3 Oct 2013, Gerald Ruderman wrote:
> 
> > I am trying to timestamp a PDF to prove it existed at a certain time.
> (Snip)
> 
> ***   Since timestamps can be changed, a file's date and time are not proof of
> its actual creation date.
> 
>  Richard
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