DOI: 10.5281/zenodo.18648011
title: East Asian Prehistoric Human-Face Jade Form 03 (EANJ_FACE_03):
High-Resolution Digital Documentation of Morphology, Perforations, Surface Evolution, and Tool Traces

description: 1. Core Statement

1.1This record contains high-resolution original visual data of a single human-face jade form (Form ID: EANJ_FACE_03).

1.2This dataset serves as the foundational research base for the specimen’s digital archiving project, providing high-fidelity visual evidence to support morphological analysis, traceological investigation, and materials science–related research.

1.3The digital record of this object forms part of a continuously expanding data collection intended to provide a citable foundation for future cross-object comparative research. At the present stage, no cross-sample comparative interpretation is undertaken.

 

2. Access and Usage Instructions

2.1 Access RestrictionFor reasons of data security and academic compliance, the high-resolution original files in this dataset are made available under restricted access.

2.2 Application RequirementsApplicants must submit a clear research purpose together with their institutional affiliation via the Zenodo platform.

2.3 Usage RestrictionsThis dataset is intended solely 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 without explicit authorization.

 

3. Dataset Composition

3.1 Panoramic DocumentationHigh-resolution frontal and dorsal photographs documenting the overall proportions and geometric structure of the object.

3.2 Measurement ReferenceImages incorporating metric scales for quantitative assessment.



Length: 4.3 cm

Width: 1.9 cm

Thickness: 1.8 cm

Weight: 23 g


3.3 Microscopic EvidenceHigh-magnification images documenting perforation structures, micro-weathering features, and observable tool-related traces.

 

4. Object Photographic Inventory

This dataset includes seven high-resolution images, as detailed below:



Frontal view: documenting facial configuration features and overall proportionsEANJ_FACE_03_FRONT

Reverse view: showing rear outline morphology and perforation openingsEANJ_FACE_03_REVERSE

Scale reference view: incorporating a metric scale for dimensional referenceEANJ_FACE_03_WITH_SCALE

Surface macro photograph (frontal): documenting localized weathering features on the frontal surfaceEANJ_FACE_03_MIC_ALTERATION_FRONT

Surface macro photograph (reverse): documenting localized weathering features on the reverse surfaceEANJ_FACE_03_MIC_ALTERATION_REVERSE

Perforation macro photograph: showing erosion traces under raking light conditionsEANJ_FACE_03_FRONT_RAKING_LIGHT

Perforation macro photographs (paired openings): documenting the paired perforation configuration commonly described as a “cow-nose” arrangementEANJ_FACE_03_MIC_ONP_REANJ_FACE_03_MIC_ONP_L


 

5. Limitations, Observational Constraints, and Open Questions

5.1 Observational Constraints



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

The object exhibits a sub-cylindrical volumetric form, transitioning from linear incision to relief modeling, which presents challenges for planar photographic documentation.

The morphological complexity of the object complicates the application of standard measurement protocols and necessitates adapted quantitative approaches.

The spatial relationship between the reverse-side paired perforations and the frontal relief features presents additional documentation constraints.


These limitations are recorded to support transparent evaluation and to encourage methodological refinement.

 

5.2 Open Questions for Further Inquiry

The following aspects may warrant independent quantitative assessment or methodological development:



Whether certain dimensional parameters or perforation ratios fall toward the margins of documented ranges.

The mechanisms and conditions underlying irregular erosion and pitting observed on the surface.

Challenges associated with applying standardized measurement protocols to morphologically complex, volumetric forms.

The typological positioning of this volumetric configuration within currently documented sample sequences.


The points listed above are presented solely as open areas for investigation and do not constitute any form of conclusion.

 

6. Imaging and Processing

6.1All images were captured in RAW format using a full-frame camera equipped with a 90 mm macro lens and subsequently converted to JPEG files (approximately 42 megapixels per image), with no localized image modification.

6.2Photography was conducted under controlled lighting conditions with neutral backgrounds to minimize environmental interference.

6.3No physical manipulation or surface treatment was applied to the object during the imaging process.

6.4Any post-processing was limited to global exposure and white balance adjustments to accurately reflect the material’s visual condition.

 

7. Compliance and Due Diligence

7.1The compilation and release of this dataset adhere to fundamental principles of academic data management.

7.2Prior to digitization and release, the dataset underwent internal evaluation with respect to release risk, usage boundaries, and alignment with academic norms, ensuring transparency, prudence, and procedural rigor.

7.3This dataset is released exclusively as a non-interpretive original visual record and does not constitute, nor should it be used as, any form of academic conclusion, cultural attribution, chronological determination, or institutional position.