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README.md

@@ -14,7 +14,7 @@ tags:
 task_categories:
   - robotics
 license: other
-license_name: mixed-spdx-per-asset
+license_name: apache-2.0-with-upstream-cited-assets
 language:
   - en
   - zh
@@ -40,16 +40,16 @@ Unified embodied-world **3D assets** (scenes, robots, objects) for the UniEMind
 
 | Content | Default license | Notes |
 | --- | --- | --- |
-| UniEMind-authored **reference / official** 3D assets | **[CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)** | Attribution required; commercial use allowed under CC-BY-4.0 terms |
-| UniEMind-Assets **code, schemas, tools** (sibling Git repo) | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | Not the primary content of this HF dataset |
-| **Third-party** meshes, robots, scenes, textures | **Original upstream license** | Unchanged by upload here; see per-asset notices when present |
+| UniEMind-authored **reference / official** 3D assets | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | Same as UniEMind tooling; see NOTICE / SPDX when present |
+| UniEMind-Assets **code, schemas, tools** (sibling Git repo) | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | Metadata contracts, registry, CLI |
+| **Cited / third-party** meshes, robots, scenes, textures | **Upstream author's license** | Follow the **referenced** project's license and attribution; upload here does not re-license them |
 
 ### Rules of use
 
 1. **Per-asset SPDX wins.** If an asset directory contains `LICENSE`, `license.spdx`, or `asset.yaml` → `license.spdx`, that entry overrides the table above for that asset.
-2. **Third-party rights are preserved.** Inclusion in UniEMindAssets does **not** re-license upstream CAD, USD, URDF, textures, or brand assets. Downstream users must still comply with the original license and attribution.
+2. **Cited assets keep the upstream license.** If an asset is imported or referenced from another author/project, use **that author's license** (and NOTICE / attribution), not Apache-2.0 by default. Inclusion in UniEMindAssets does **not** re-license upstream CAD, USD, URDF, textures, or brand assets.
 3. **No warranty.** Assets are provided as-is for research and development; verify fitness for your simulator and product before production use.
-4. **Attribution.** For CC-BY-4.0 UniEMind assets, credit **UniEMind / UniEMindAssets** and link back to this repository when you share or adapt them.
+4. **NOTICE for Apache-2.0 UniEMind assets.** When redistributing UniEMind-authored assets under Apache-2.0, retain copyright / NOTICE files and attribute **UniEMind / UniEMindAssets** as required by the license.
 
 ### Infringement / takedown
 
@@ -196,7 +196,7 @@ Runtime joint positions, object poses, velocities, contacts, and sensor streams
 
 ## Citation
 
-If you use these assets in research or products, please cite UniEMind and attribute assets according to their SPDX license (CC-BY-4.0 for UniEMind-authored assets unless stated otherwise).
+If you use these assets in research or products, please cite UniEMind and comply with each asset's SPDX license (**Apache-2.0** for UniEMind-authored assets; for cited third-party assets, follow the **referenced** author's license).
 
 ---
 

README_zh.md

@@ -14,7 +14,7 @@ tags:
 task_categories:
   - robotics
 license: other
-license_name: mixed-spdx-per-asset
+license_name: apache-2.0-with-upstream-cited-assets
 language:
   - en
   - zh
@@ -40,16 +40,16 @@ UniEMind 生态的统一具身世界 **三维资产**（场景 / 机器人 / 物
 
 | 内容 | 默认许可证 | 说明 |
 | --- | --- | --- |
-| UniEMind 自有 **参考 / 正式** 三维资产 | **[CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)** | 需署名；在 CC-BY-4.0 条款下允许商业使用 |
-| UniEMind-Assets **代码、Schema、工具**（同生态 Git 仓库） | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | 通常不是本 HF 数据集的主要内容 |
-| **第三方** 网格、机器人、场景、贴图等 | **遵循上游原始许可证** | 上传至本仓库**不改变**上游权利；以资产内声明为准 |
+| UniEMind 自有 **参考 / 正式** 三维资产 | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | 与 UniEMind 工具链一致；以资产内 NOTICE / SPDX 为准 |
+| UniEMind-Assets **代码、Schema、工具**（同生态 Git 仓库） | **[Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)** | Metadata、Registry、CLI 等 |
+| **引用 / 第三方** 网格、机器人、场景、贴图等 | **被引用方的原始许可证** | 遵循**被引用人 / 上游项目**的 license 与署名要求；上传至本仓库**不改变**其授权 |
 
 ### 使用规则
 
 1. **资产级 SPDX 优先。** 若资产目录内存在 `LICENSE`、`license.spdx`，或 `asset.yaml` 中的 `license.spdx`，则以该条目为准。
-2. **第三方权利保留。** 资产出现在 UniEMindAssets 中，**不等于**对上游 CAD、USD、URDF、贴图或品牌素材重新授权。使用者仍须遵守原始许可证与署名要求。
+2. **引用资产遵循被引用方 license。** 若资产来自其他作者 / 项目的引用或导入，应以**被引用人的许可证**（及 NOTICE / 署名要求）为准，默认不按 Apache-2.0 处理。出现在 UniEMindAssets 中**不等于**对上游 CAD、USD、URDF、贴图或品牌素材重新授权。
 3. **无担保。** 资产按现状提供，用于研究与开发；量产前请自行验证与目标仿真器 / 产品的适配性。
-4. **署名。** 对采用 CC-BY-4.0 的 UniEMind 资产，分享或改编时请注明 **UniEMind / UniEMindAssets**，并回链本仓库。
+4. **Apache-2.0 UniEMind 资产的 NOTICE。** 再分发 UniEMind 自有资产时，请按 Apache-2.0 保留版权 / NOTICE，并按规定保留 **UniEMind / UniEMindAssets** 相关声明。
 
 ### 侵权与下架
 
@@ -198,7 +198,7 @@ unimind-sim run --scene <scene_id> --backend mujoco   # 或 isaac
 
 ## 引用
 
-若在研究或产品中使用本仓库资产，请引用 UniEMind，并按各资产 SPDX 许可证完成署名（UniEMind 自有资产默认为 CC-BY-4.0，除非另有说明）。
+若在研究或产品中使用本仓库资产，请引用 UniEMind，并遵守各资产 SPDX 许可证（UniEMind 自有资产默认为 **Apache-2.0**；引用他人的资产则遵循**被引用人**的 license）。
 
 ---