Site backup review

Question

Data archiving

A year ago I made a backup of the newly created site and received an archive with a backup copy.

Now we need to prove (not to ourselves, of course) that the site was ready a year ago and that the backup clearly shows this.

Please tell me:

1. is it possible to prove the authenticity that the backup, backup copy of the site and / or archive in the .tar.gz format was made exactly on the day on which I claim (and that the archive is not forged);

2. Is it easy to fake the date of creation of a website backup, website backup or archive:

3. How can you prove the existence of a website on the Ru-Center virtual hosting server on a certain date a year ago;

4. Who can conduct an examination of the backup copy of the site on a date a year ago?

Thank you! :)

Answer 1

1. hardly
2. very easy
3. only to find it in the web archive

Answer 2

Usually a backup is written to a disc and sent to yourself by mail.
If the envelope is not opened, then the issue of the backup date can be considered proven.

Answer 3

The date changes
touch -m -t 09082000 file
where 09 is the month, 08 is the day, 20 is the hour and 00 is the minute.

Answer 4

If the domain did not exist before the site was created, then, theoretically, you can find out from the same Yandex the date it was added to the index.