Ritual anatomy assets — license notice
=====================================

Current build (Track B)
-----------------------
Interactive meshes under /public/anatomy/bp3d/ are a curated subset of
BodyParts3D (Database Center for Life Science), polygon reduction 99%,
IS-A tree, version 4.0.

Attribution (required):
  BodyParts3D, © The Database Center for Life Science licensed under
  CC Attribution 4.0 International

License page:
  https://dbarchive.biosciencedbc.jp/en/bodyparts3d/lic.html

Download source:
  https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html

Notes:
- Legacy .obj file headers may still mention CC BY-SA 2.1 Japan; the
  current LSDB archive license page (updated 2025-02-27) states CC BY 4.0.
- Ritual's Three.js / React viewer code is original and is not derived from
  the AnatomyTOOL GPL viewer.
- No NC-licensed textures are used.
- External urethral sphincter is not a separate BodyParts3D part; the
  front-kegel highlight uses urethra + pubococcygeus near the prostate apex.
- Educational use only — not for diagnosis or treatment.

Practice cues
-------------
Memorial Sloan Kettering patient-education materials informed practice cues.
Figures and wording were not copied.

See also
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docs/specs/pelvic-floor-anatomy-visualizer.md
public/anatomy/bp3d/MANIFEST.json