Notes on verification

Confirmed by the primary PNAS paper, a follow-up 2017 Current Anthropology review, and multiple independent science journalism sources (Smithsonian, IFLScience, Archaeology.org), all consistent across more than a decade of excavation seasons. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.963 clusters=4 claim_tier=notable | framework convergence=partial on Original excavation reports by the Demeter/Shackelford research team at Tam Pa Ling (upstreams: Demeter et al. 2012 PNAS study, Shackelford et al. excavation team field reports/2017 Current Anthropology review) — publishers independent, evidence may not be | kind=empirical eligibility=high]