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'''Image swap''' refers to the rare event when a post's attached image is erroneously replaced by the attached image of an unrelated post. Sometimes only the thumbnail is swapped, other times a '''"full swap"''' swaps the true, expanded images entirely. Sometimes there is no swap, one simply overwrites the other. ''Image swaps'' seem to happen when images are processed at the same time in the eyes of 4chan's servers. | '''Image swap''' refers to the rare event when a post's attached image is erroneously replaced by the attached image of an unrelated post. Sometimes only the thumbnail is swapped, other times a '''"full swap"''' swaps the true, expanded images entirely. Sometimes there is no swap, one simply overwrites the other. ''Image swaps'' seem to happen when images are processed at the same time in the eyes of 4chan's servers. | ||
4chan servers index images by a 13-digit [https://en.wikipedia.org/wiki/Unix_time UNIX timestamp]<ref>Visible in the URL of any image</ref> which has the precision of a millisecond, which makes collisions not too hard given you roll the dice enough times. As of 2021, ''image swaps'' are not too infrequent on boards like [[/pol/]], [[/v/]] and [[/vg/]], which average ~100 posts per minute.<ref>https://4stats.io</ref> | |||
[[File:image_swap_mlp-tv.png|thumb|Image swap across two /mlp/ and /tv/ posts, to the amusement of /tv/ posters. 2013. It's unknown if crossboard image swaps are still possible in 2021. Server changes now probably separate the file path to images by board, so at least, images are no longer conflated like this.]] | |||
[[File:image_swap_mlp-tv.png|thumb|Image swap across two /mlp/ and /tv/ posts, to the amusement of /tv/ posters. 2013. It's unknown if crossboard image swaps are still possible in | |||
= Further reading = | = Further reading = | ||
- Instances of ''image swaps'' are often reported at the time's respective meta discussion general (if it is alive): [https://desuarchive.org/_/search/boards/subject/4chan%20happenings%20thread/] | |||
= Notes = | = Notes = | ||
<references/> | <references/> |