On 10/24/21, Stefan Claas <spam.trap.mailing.lists@gmail.com> wrote:
Hi Karl,
On Sun, Oct 24, 2021 at 7:58 PM Karl <gmkarl@gmail.com> wrote:
Stefan, thank you for your helpful reply.
Karl, I am sorry I took a nap and therefore could not reply earlier.
To answer your questions. I wrote in my reply that one would upload the files, the hash sum file and the timestamp file, so that users wishing to know if the files were tampered with they simply drag and drop the timestamp file and the hash sum file into opentimestamps.org interface and see that the result is valid with the date the file was stamped.
Regarding mutations.
Since you have the date displayed and one would find another site with the same content he could not prove an earlier date than you, because the timestamp is in the blockchain.
Regards Stefan
Well if he can get the word out more than you in some way, he can make it look like he was first to those who don't find your file, since the blockchain doesn't reveal there was prior work. But it looks easy to fix via small change to the opentimestamp client code. Kudos to Germany, that's incredible stuff that the national id card has a pgp key in it, huge addition to the systems out there.