FanCoreEarly data · Pixiv (SFW) + Danbooru

Bocchi the Rock!

ぼざろぼっち・ざ・ろっく！
Anime · Since 2018 · JP / Global
Current dynamics from Jan 1, 2026Data through Sep 29, 2026Sources: Pixiv (origin, safe-for-work only) · Danbooru (archive proxy)
Early data.Pixiv is read without login, so R-18 works are not counted. Danbooru mirrors work first posted elsewhere and is a lower bound. X is not collected yet. Fan music and producer MVs are a separate index that is not measured yet.
PeriodCompared with the previous equal period · data through Sep 29, 2026
Visual output◇ Experimental
34decreased by 26.1 percent compared with the previous 14-day period−12 vs previous 14 daysNew human-made works on Pixiv tagged for this fandom. Safe-for-work only; AI works excluded.
Calculated
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
visual_output@0.1
Active creators◇ Experimental
27decreased by 3.6 percent compared with the previous 14-day period−1 vs previous 14 daysPixiv accounts that posted at least one human-made work. Accounts, not people.
Calculated
Low confidence, show reasons
Low confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
  • Small sample: 27 (below 30)
active_creators@0.1
AI-generated share◇ Experimental
43.3%increased by 30.1 percentage points compared with the previous 14-day period43.3% vs 13.2% previous 14 daysShare of works Pixiv flags as AI-generated. Kept out of the numbers above.
Calculated
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
ai_share@0.1
Archive additions◇ Experimental
191increased by 13.7 percent compared with the previous 14-day period+23 vs previous 14 daysPosts added to Danbooru for this fandom. A lower bound, not a count of original works.
Proxy
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
archive_additions@0.1
Artist tags◇ Experimental
114increased by 39.0 percent compared with the previous 14-day period+32 vs previous 14 daysDistinct artist tags on those posts. A proxy for active creators, not accounts.
Proxy
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
archive_artist_tags@0.1

Archive additions per day

Human (non-AI) Danbooru posts per UTC day, Sep 16 – Sep 29

0102030Sep 16Sep 19Sep 23Sep 26Sep 29
Archive additions per day
Show data table (14 days)
DateArchive additions
Sep 29, 202616
Sep 28, 202614
Sep 27, 202625
Sep 26, 20265
Sep 25, 20269
Sep 24, 202629
Sep 23, 202621
Sep 22, 20269
Sep 21, 20268
Sep 20, 202619
Sep 19, 20269
Sep 18, 202613
Sep 17, 20269
Sep 16, 20265
DanbooruProxyUpload date, not creation datearchive_additions@0.1