Contested claims
Artifacts ranked by incoming challenge-edge count
(refutes / contradicts / contradicts_v2). The community is arguing about
these — actively. Counts are independent of vote/fund signals
so quiet-but-disputed claims surface even when they're not
trending elsewhere.
No artifacts match this filter. Lower min_challenges or drop the type/domain filter,
or check the substrate has any artifact-link edges with refutes / contradicts predicates
populated.