Each dot is one product. Shape encodes technology (see the "i" button next to the Technology selector for definitions). Color encodes sourcing region. Border thickness encodes how many independent sources verify the row: hairline = 1, medium = 2, heavy = 3+.
Confidence tier in the detail panel (same field as the open dataset): Tier 0 Anchor = complete provenance, direct observation; Tier 1 Verified = complete provenance from an authoritative government source (FAA DoC, FCC grant, DCMA list); Tier 2 Triangulated = multiple corroborating sources; Tier 3 Inferred = single-source or inferred. Use the Evidence-tier filter above to restrict to any tier.
Caveat: only 4 of the 595 rows in this explorer have ≥ 2 independent sources. Treat single-source rows as preliminary, and weight aggregate/share statistics by tier and source health.