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Canonical Source · official dataset
This page documents how this source is reused across Claim by Claim. A source can support, challenge, qualify or contextualize different claims; appearing here does not imply endorsement of every linked proposition.
Evidence context
Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.
Investigation
Original authors corrected their 2025 transport figure dataset and ratio coding; competing reported quarry-distance percentages are not used without denominator reconciliation.
Subject families