Walkthrough for Bellingcat's 'A Very Cold Case' challenge

Hi, welcome to this write-up for the A Very Cold Case challenge from Bellingcat. Here you can see my thought processes and what steps I took to get to the answer, but of course there are many different ways of reaching the same results. The challengeWe've received an audio file with a radio programme covering the results of a Winter Olympics event. In the audio three different anthems can be heard partially. We have to find the date on which this medal ceremony took place. The first assumptionWhen I listened to the anthems, I didn't recognize any of them. To be honest, I'm not that good recognizing sounds of any type. I feel awkward asking others for advice, because I sometimes get the (unwarranted) feeling that I have to do everything 100% myself or it doesn't 'count' (whatever that may mean). However, I'm starting to learn that finding and asking others for information they have on hand is a useful path to take. So, I played the audio for someone I know to see if they could give me…