Notes on verification

Confirmed by original peer-reviewed Nature papers (Krause et al. 2010; Reich et al. 2010) and multiple independent secondary sources including Britannica and Wikipedia. Minor nuance that the bone was excavated in 2008 but genetically identified/announced in 2010 does not contradict the claim. [cascade flags: aggregator_dropped_primary_exists,wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.988 clusters=4 claim_tier=notable | framework convergence=single on the 2010 Nature papers by Krause et al. and Reich et al. reporting mitochondrial and nuclear DNA sequencing of the Denisova Cave finger bone (upstreams: Krause et al. 2010, Nature 464:894-897, Reich et al. 2010, Nature 468:1053-1060, Max Planck Institute for Evolutionary Anthropology) — publishers independent, evidence may not be | kind=empirical eligibility=high]