Proper documentation of porcelain sculpture creation is essential for establishing provenance and ensuring artwork authenticity. Here are the most effective methods artists and collectors should implement:

1. Detailed Material Logs: Record every material used including clay composition, glazes, and pigments with batch numbers and supplier information. This creates an unbroken chain of custody.

2. Photographic Documentation: Capture high-resolution images at each stage - from initial sketches and clay preparation to firing and finishing. Timestamped digital photos with metadata are ideal.

3. Digital Process Journals: Maintain encrypted digital records using specialized art documentation software that timestamps entries and allows for multimedia attachments.

4. Witness Signatures: Have studio assistants or reputable art professionals sign and date critical stages of completion as independent verification.

5. Blockchain Verification: Emerging technologies allow artists to register works on blockchain platforms that create immutable, timestamped records of creation.

6. Certificates of Authenticity: Issue detailed certificates including creation dates, materials, techniques, and artist statements. Use security paper with holograms or watermarks.

7. Thermoluminescence Testing: For high-value pieces, consider scientific dating methods that can verify the firing date of ceramic works.

8. Consistent Archiving: Store all documentation in both physical and digital formats with multiple backups, including cloud storage with restricted access.

Implementing these methods creates a comprehensive provenance trail that enhances artwork value, deters forgery, and satisfies collector requirements. The level of documentation should correspond to the sculpture's value and intended market.