If I asked about finding the signatories (by which I mean the individuals who signed for their countries) of treaties such as this one would it be off topic?
In the German Bundestag there often arises the question of who made a decision. For example the party SPD accuses the party CDU of something and the CDU says “But it was you who agreed to it!”. I like to go to official sites and view the treaty, but I know no sites displaying the signatures. Of course the question remains whether a signatory is carrying out the binding decision of a previous government...