{"method":"Exploratory Spearman comparisons within 68 paid, metadata-matched builders. All three examined windows are reported. Payout dates do not identify reward-earning weeks. No causal or exact reward-formula claim.","volume_unit":"shares","activity_unit":"sum of daily distinct maker counts; not unique people or acquired users","windows":[{"start":"2026-08-01","end_exclusive":"2026-09-15","n":68,"payout_vs_volume_spearman":0.897963,"payout_vs_maker_days_spearman":0.529511},{"start":"2026-08-01","end_exclusive":"2026-09-01","n":68,"payout_vs_volume_spearman":0.906345,"payout_vs_maker_days_spearman":0.539536},{"start":"2026-08-18","end_exclusive":"2026-09-16","n":68,"payout_vs_volume_spearman":0.871461,"payout_vs_maker_days_spearman":0.560869}]}