Testing a Platinum Electrode

I recently ordered a few electrodes for future electrochemisty experiments, and they arrived earlier today. In particular, I now have a titanium cathode, an MMO anode, and a platinum coated titanium anode.
Given the frequency of fake platinum anodes being sold on the internet (especially ebay), I check the authenticity of my platinum electrode using a dilute solution of hydrogen peroxide.
By applying the peroxide solution to the anode surface, the rapid presence of bubbles (catalytic decomposition of the peroxide to oxygen gas) confirms the fact that the surface is likely to be platinum metal.

I've made a video on this subject before, though last time I didn't have real electrodes. It was a pretty terrible video (one of the first I uploaded, and I considered taking it down at one stage) in which I tried to build a tiny hydrogen fuel cell with the platinum surfaces in order to test them. Anyway, the video's one of my more popular ones now, despite how useless it is:
https://youtu.be/PX9vkfyy50Q

Видео Testing a Platinum Electrode канала Scrap Science