# HRA Brain Male v1.3 — source attribution

Kristen Browne and Heidi Schlehlein (2023). **3D Reference Organ for Brain, Male v1.3**. Human Reference Atlas / HuBMAP. DOI: https://doi.org/10.48539/HBM929.XKCL.339.

Release: https://purl.humanatlas.io/ref-organ/brain-male/v1.3

Official release metadata and citation: https://cdn.humanatlas.io/digital-objects/ref-organ/brain-male/v1.3/

NIH 3D: **Brain, Male**, HRA, entry **3DPX-020960**, entry version **1**, published 2024-03-06: https://3d.nih.gov/entries/20960?version=1

Upstream anatomy acknowledged by HRA: Allen Human Reference Atlas – 3D, 2020; Ding et al. (2016), https://doi.org/10.1002/cne.24080. HRA describes mirroring a hemisphere reference into a whole-brain assembly and resizing it for the Visible Human references. This is not two independently scanned hemispheres or separate male/female brain specimens. Preserve these transformation/provenance notices in any later redistribution.

**License: Creative Commons Attribution 4.0 International (CC BY 4.0).** https://creativecommons.org/licenses/by/4.0/

This license is documented for this exact HRA v1.3 release; it is not an assertion that every upstream Allen resource or older HRA release has the same license.

Downloaded 2026-09-22 UTC. Source bytes unchanged. Native file: `source/3d-vh-m-allen-brain.glb`; NIH display label: `hra-reference-organ-brain-male-v1.3.glb`.

Local changes to source: **none**. Evaluation renders change only scene-instance framing, lighting and optional neutral material in memory; no source model was saved, optimized or re-exported. Inspection JSON and screenshots are local evaluation artifacts. No affiliation, endorsement, clinical suitability or anatomical completeness is implied.

Commercial copying, adaptation/conversion and redistribution of the licensed material are permitted subject to the license. Retain required credits/notices and source/license links, identify modifications, and do not impose additional restrictions on recipients' licensed rights. The license supplies no warranty and does not establish medical validation. This file is a practical attribution record, not a replacement for the legal license text.

## MAIN reviewed educational derivative

Delivery changes: extracted only 94 VERIFIED and 1 SOURCE-DIRECT mesh records; flattened the identity-transform scene hierarchy. Original geometry/accessor bytes, normals and source node metadata are unchanged. Raw source hierarchy is retained separately in catalog records. Product canonical groups, lighting, materials, normalization and reversible explode are presentation changes only. No new anatomy, textures, optimization or premium realism is asserted. Verified describes terminology evidence, not independent anatomical certification. 176 provisional and 12 quarantined records remain only in the isolated review workspace.