I was unable to find any specific academic paper, report, or publication referencing "Periscope LiveOMG 2020 (307).rar".
If this is related to a specific research topic, it may be helpful to search for: The username of the streamer involved. The specific topic of the stream. Academic studies on Periscope user behavior in 2020.
Based on the filename structure, this appears to be a compressed archive file (RAR) likely containing recorded live streams, screenshots, or user-generated content from the Periscope platform from 2020. Such files are typically found on file-sharing sites, imageboards, or personal archives rather than in academic or research databases.
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