Users of the WordProof Timestamp for WordPress plugin have seen it before: the 'site key' which needs to be entered during the set-up. It is the magic ingredient that allows your website to communicate with WordProof - and the other way around.
To generate a new site key, head to My WordProof > Content and select the website for which you want to create a new site key.
Click on the three dots next to the icon of the CMS used by your website.
Click on 'Generate new Site Key'.
There it is! Paste this key during the setup of WordProof Timestamp to connect your website to WordProof Timestamp.