# Anatomy model attribution

BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International.

- Source: [official BodyParts3D archive](https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html).
- Version: BodyParts3D 4.0 (released 2013-05-16), IS-A OBJ archive, polygon reduction rate 99%.
- Retrieved: 2026-09-22.
- Model/data license: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), as specified by the [archive license](https://dbarchive.biosciencedbc.jp/en/bodyparts3d/lic.html), updated 2025-02-27.
- Full hashes and source-to-runtime mapping: [manifest.json](manifest.json).
- Original work: Mitsuhashi et al., “BodyParts3D: 3D structure database for anatomical concepts”, Nucleic Acids Research 37 (2009), D782–D785. [DOI](https://doi.org/10.1093/nar/gkn613).

Changes by OrganUI: selected meshes, grouped meshes by source concept, triangulated faces, recentered and uniformly scaled coordinates, changed axes from Z-up to Y-up, recomputed smooth normals, assigned illustrative colors, and converted OBJ to GLB. No further decimation or invented anatomy. The two ventricular walls remain one mesh; separate cavity surfaces represent interior spaces, not muscle tissue.

Legacy OBJ headers cite CC BY-SA 2.1 Japan and link to the same official archive license URL. This distribution relies on the archive's current CC BY 4.0 grant for these directly downloaded assets, not the terms of an unrelated mirror. The repository preserves that discrepancy and a dated license-page snapshot in `docs/MODEL_PROVENANCE.md` and `docs/model-source/`.

The MIT license for original application code does not relicense this model or its derived screenshots. Preserve this attribution, the model license link, and the modification notice when redistributing the model or images of it. DBCLS does not endorse this demonstration. The source release notes caution that the database can contain missing or incorrect anatomical representations.

## kingt.ai presentation changes

OrganUI selected and grouped BodyParts3D 4.0 source meshes, triangulated, recentered and scaled coordinates, changed Z-up to Y-up, recomputed smooth normals, assigned illustrative colors and converted OBJ to GLB. kingt.ai preserves the geometry and adds attribution metadata; runtime presentation changes the colors, applies a translucent silver-metal shell, and separates anatomical groups for the exploded view; the website applies an illustrative heartbeat deformation at runtime.

Full credit and license information are also embedded in the GLB asset copyright and extras fields.

## Additional internal structures

The separately distributed `internals.glb` adapts Heart Atlas content under CC BY-SA 4.0. See [internal-anatomy attribution and modification notices](INTERNALS-ATTRIBUTION.md) and [registration provenance](internals.provenance.json). The website recolors these structures and adds shared heartbeat deformation, iridescent material highlights and reversible exploded transforms.

The current presentation applies partially transparent silver metallic materials and physical thin-film iridescent reflections to all visible anatomical components.