Zerochan.net is one of famous anime/game/CG imageboards with strong community and modest crossposting with other imageboards. It has specific tagging system - close to e-shuushuu-net - but not to mainstream danbooru / safebooru / yande-re / konachan / sankaku. That's why Zerochan is a good distinct source for investigation of non-photographic images and their metadata. This release devoted to dates between **01.01.2015 (ID=1820240) and 31.12.2016 (ID=2064142)** right before release zerochan-2017 on russian tracker (https://rutracker.org/forum/viewtopic.php?t=5478026) **you can get magnet there** and giant zerochan-2018-2020 here (https://nyaa.si/view/1304539) **most of description and processing STUFF can be found there** #### Release contains: - **61348 images in 270 zipped folders** (1820xxx-2064xxx and several addons) partitioned mostly by 1.000-th ID * filtered by size ~ least(image_height,image_width)>=1080 -- fullHD wallpapers as minimum ~ image_height*image_width>=1200000 -- 1100x1100 included ~ image_width/image_height between 0.25 and 4 -- not too disproportional * renamed **"zerochan - id - up_to_3_sources ~ up_to_5_characters (up_to_2_artists).ext"** ~ tags concatenated via "+", spaces replaced with underscores ~ maximum file name length 220 symbols, characters tags may be truncated if too long * image format - JPG * some gentle deduplication made (only visually identical images dropped) - some metadata for every image "ZERO_POSTS_2016.TSV" in root folder 61348 rows - tag info for Copyright / Characters / Artists "ZERO_TAGS_2016.TSV" - 1498790 rows and also **additional cross-release metadata**: - for every image "ZERO_POSTS_TORR_2017.TSV" 172360 rows for zerochan-2017 - tag info "ZERO_TAGS_2017.TSV" - 1028999 rows - rename script from zerochan-2017 naming to used here **zero_rename_2017.bat** * you cannot run it at once because of Windows limitation 16k commands in batch - **ZERO_RAW_2015-2020.JSON** initial data for all 3 releases - 979103 rows * NOTE post references in JSON URL may differ from page ID where it found, unfortunately I didn't save page ID This torrent is not so huge compared to 2018-2020 because less count of images and no PNG at Zerochan that times. Earlier interval (2014-) of Zerochan has big (80%+ ?) intersection with Sankaku (https://nyaa.si/view/750972), Safebooru (https://nyaa.si/view/719463) and e-shuushuu (https://nyaa.si/view/513582, https://nyaa.si/view/771715) so ~~I see no sense to go deeper. Not yet.~~ [Hoops, I did it again !](https://nyaa.si/view/1336359)