Which authentication technology is NOT currently used in the supply chain tracking of high-value traditional cultural artifacts?

In the world of cultural artifacts and traditional crafts, authenticity is paramount. The supply chain for cultural items involves intricate verification processes before they reach museums, collectors, or cultural centers. This trivia challenges your knowledge about how traditional artisanal products are authenticated and tracked from creator to consumer, highlighting the unique challenges in preserving cultural heritage through commercial channels.

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Blockchain-based digital certificates that create an immutable record of provenance
DNA markers extracted from organic materials and embedded in traditional crafts
Microscopic tagging with region-specific isotope signatures to verify origin
RFID microchips discreetly embedded in artifacts for tracking and authentication