Proof for a creation date [GishPuppy]

Glenn Rempe glenn at
Fri Dec 2 19:24:09 CET 2016

Unfortunately, I think the public key from that service is no longer importable in modern GnuPG.

Trying to import the public key on this page results in no public key being imported. Without this the service cannot be used to verify the signature on a timestamp report (I reported this to them several years ago. No changes were made).  Also, this service is not a very secure source of time. They use their own clock. They claim some security by using an incrementing counter and publishing signed snapshots to a usenet group.  Bottom line though is this service is pretty ancient and requires a lot of trust on your part of the administrator.

$ gpg2 --verbose --import stamper.asc
gpg: armor header: Version: 2.6.3i
gpg: Total number processed: 3
gpg:     skipped PGP-2 keys: 3

$ gpg2 --version
gpg (GnuPG) 2.1.16

> Bertram Scharpf wrote:
> > I want to make evidence that I created a document
> > _before_ a certain point of time.
> >
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