Understanding verification and documentation Exercise Verify this YouTube video You are a human rights researcher, and need to verify a YouTube video [https://youtu.be/clrICxJihWI] of excessive use of force by police at a protest in Rio de Janeiro, Brazil that a colleague shared with you. 1. Y  ou download the video to preserve it, because sensitive online on Monday morning in heavy rain. content gets often removed. Historical weather data accessed through 2. U  sing the YouTube Data Viewer, you identify the time of publication (though not the time of the recording) which was 5:30pm (Brasilia Time) time on April 14, 2014. A reverse image search on thumbnails of the video, does not WolframAlpha.com is consistent with what is seen in the video (rainy and misty) thus making the video and the alleged time of day seem more credible. 6. Y  ou use slow-motion video playback retrieve any earlier versions of the video (on YouTube or VLC media player) to online. take a closer look at police uniforms 3. T  he creator helpfully listed their name under the video, and you conclude by looking at other social media platforms that the uploader appears to be an activist in Rio de Janeiro. 4. The video and description is rich in clues about the location (Prefeitura do Rio). To verify, you use the online map Wikimapia to find Rio’s city hall (prefeitura) and use satellite images found on Google Earth to cross-reference visible landmarks (office building, pedestrian bridge). Geo-referenced photos from Panoramio (accessible through Google Earth) also match up. 26 5. T  he description says the protest happened and insignias compared with those depicted on official police websites [https://www.facebook.com/gmrio.oficial]. You note down details, in case it can be useful for future investigations of individuals involved. 7. F  inally, when you search for additional content with your regular search engine, you are able to find several other videos from the same date and protest [https://youtu.be/sxyrP0yBBts], corroborating the video.