{"metadata":{"dataset_name":"Werracle Verified Empirical OEV Dataset (2026)","version":"1.1.0-audited","generated_at_utc":"2026-10-23T05:30:00Z","auditor":"Werracle Independent Research & Security Desk","chains_covered":["ethereum_l1","base_l2","arbitrum_l2"],"total_records":1157,"l1_records_count":1049,"svr_records_count":108,"note":"Only verified multicall-decoded SVR events (108 txs) are included; distorted single-event gross records have been purged."},"empirical_summary":{"ethereum_l1_findings":{"total_liquidations_monitored":1049,"metric_measured":"Builder Payment via MEV-Boost (Priority Fee / Bribe), NOT gross liquidation volume","total_builder_payments_usd":358316.62,"median_builder_payment_usd":0.08,"p75_builder_payment_usd":0.56,"p99_builder_payment_usd":2639.23,"top_22_events_builder_payments_usd":344155.62,"aave_v3_133_events_builder_payments_usd":317467.0,"builder_payments_sub_1_usd_count":848,"builder_payments_sub_1_usd_ratio_pct":80.84,"observation_window":"30-day baseline"},"base_l2_svr_findings":{"audited_svr_events":105,"audited_gross_volume_usd":190506.31,"protocol_recaptured_bids_usd":186889.85,"protocol_recapture_pct":98.1,"solver_pre_swap_net_usd":3545.73,"solver_pre_swap_share_pct":1.86,"median_solver_margin_pct":-1.55,"zero_or_negative_margin_count":65,"zero_or_negative_margin_ratio_pct":61.9,"observation_window":"October 12–19, 2026 (primary volatility week)"}}}