DOI: 10.5281/zenodo.18644360
title: East Asian Prehistoric Human-Face Jade Form 02 (EANJ_FACE_02): High-Resolution Non-Interpretive Visual Documentation of Morphology, Perforations, Surface Alteration, and Tool Traces

description: 1. Core Statement

1.1 This record contains high-resolution original visual data of a single face-shaped jade form (Form ID: EANJ_FACE_02).

1.2 The dataset serves as the foundational research base of the specimen’s digital archive project, providing high-fidelity visual evidence to support morphological analysis, traceology, and materials science–related research.

2. Access and Application

2.1 Access Restriction: For data security and academic compliance, the high-resolution original files of this dataset are set to Restricted Access.

2.2 Application Requirements: Applicants must submit a clear research purpose and institutional affiliation through the Zenodo platform.

2.3 Usage Restrictions: All data may be used exclusively for academic research, visual documentation, and comparative analysis. Any commercial use, non-academic dissemination, or reproduction for purposes other than scholarly comparison is strictly prohibited.

3. Dataset Composition

3.1 Panoramic Documentation: High-resolution frontal and dorsal photographs capturing overall proportions and geometric structure.

3.2 Measurement Reference: Images with metric scales to enable quantitative analysis.



Length: 5.4 cm

Width: 4.8 cm

Thickness: 0.8 cm

Weight: 35 g 


3.3 Microscopic Evidence: High-magnification images documenting perforation structures, micro-erosion features, and observable tool marks.

4. Limitations, Observational Constraints, and Open Questions

4.1 Observational Constraints:



Certain surface features are partially obscured by natural deposits or weathering, limiting the visibility of potential micro-traces.

Morphological Interruption in Operational Sequence: An original set of perforations at the top of the specimen exhibits a failed state due to localized material fracture.

Repositioned Perforation Processing: The completion of an alternative set of through-perforations is observable immediately below the fracture area. This morphological adjustment preserved the continuity of the perforation structure.

Micro-wear Characteristics: The bore diameters and drilling logic of both sets of perforations appear broadly consistent. While spiral tool marks on the bore walls are subtle—potentially due to the coverage of a passivation layer—their spacing suggests a degree of sequential consistency.

These constraints are documented to support transparent evaluation and encourage methodological refinement.


4.2 Open Questions for Further Inquiry: The following aspects may warrant independent quantitative assessment or methodological refinement:



Whether certain perforation dimensions or ratios fall toward the periphery of documented ranges.

The observational value of the morphological sequence relationship between the two sets of perforations.

Morphological characteristics of the fractured state in the upper perforations.

Morphological adjustment features of the repositioned lower perforations.

Potential variability in surface alteration patterns under different observational conditions.

Challenges in applying standard measurement protocols to morphologically complex forms. These points are presented as open areas for exploration and do not constitute conclusions.


5. Imaging and Processing

5.1 All images were captured in RAW format using a full-frame camera and converted to JPEG files (resolution approx. 42 megapixels per image) without localized modifications.

5.2 Photography was conducted under controlled lighting conditions with neutral backgrounds to minimize environmental interference.

5.3 No physical manipulation or surface treatment was performed on the object during imaging.

5.4 Post-processing, if applied, was limited to overall exposure and white balance adjustments to accurately reflect the material’s visual state.

6. Compliance and Due Diligence

6.1 The compilation and release of this dataset follows fundamental principles of academic data management.

6.2 Before digitization and release, the dataset underwent careful internal evaluation of release risks, usage boundaries, and alignment with academic norms to ensure transparency and procedural soundness.

6.3 This dataset is released solely as a non-interpretive, original visual record and does not constitute any form of academic conclusion, cultural attribution, chronological determination, or institutional endorsement.