{"schema":"biopharma_seasonality.methodology.v1","as_of":"2026-08-02","status":"calendar_clock_live","availability":{"live_forecasts":false,"live_screener":false,"live_event_graph":false,"live_calendar_clock":true,"live_selection_correction":true,"note":"The calendar clock and its selection accounting are live and rebuild nightly. There is still no forecast, no probability, no screener, no cross-symbol ranking, and no event graph: the artifact describes what a window DID across complete years and what that is worth after counting every window searched."},"calendar_clock":{"artifacts":["site/seasonalitydata/index.json","site/seasonalitydata/entities/<SYMBOL>.json"],"unit_of_evidence":"one_complete_year","complete_year_rule":"first session <= Jan 10 and last session >= Dec 20","clock_slots":365,"leap_policy":"02-29_log_return_added_into_02-28_slot","missing_session_policy":"non_trading_days_carry_zero_log_return","years_capped_at":25,"min_complete_years_for_coverage":15,"window_family":{"n_candidates":2645,"horizons_days":[5,10,15,20,30,45,60,90],"wraps_year":false,"statistic":"abs_t_of_mean_window_log_return_across_years"},"selection_correction":{"null":"independent_circular_year_shift","resamples":2000,"familywise":"joint_max_t_westfall_young","sensitivity":"benjamini_yekutieli_over_registered_panel","across_symbol_multiplicity":"disclosed_as_program_level_rates_not_corrected_away"},"market_neutral":{"benchmark":"SPY","beta_source":"pit_trailing_252d_shifted_one_session"},"disclosed_limits":{"price_adjustment_is_point_in_time":false,"price_adjustment_note":"Split- and dividend-adjusted closes are the vendor's CURRENT vintage re-applied to all history, not a frozen point-in-time adjustment.","universe_is_survivorship_biased":true,"universe_note":"Coverage is measured from today's price store, so delisted, acquired, and renamed names are absent. Nothing here ranks symbols against each other, so the bias enters no per-symbol number.","exploratory_windows_are_uncounted":true,"exploratory_note":"A window a reader draws after seeing the chart spends testing budget the family accounting does not know about, and is marked exploratory."}},"clean_room":{"policy":"independent_implementation","inputs":["public_product_behavior","licensed_or_public_data","published_methods"],"forbidden":["copied_source_code","copied_assets","proprietary_backend_access"]},"clocks":{"calendar":["day_of_year","weekday","month","turn_of_month","quarter_end"],"event":["fda","clinical_trial","conference","financing","commercial"],"regime":["broad_market","biotech_tape","rates_liquidity","issuer_financing_pressure"]},"validation":{"independence_unit":"year_or_event_cluster","selection_controls":["trial_ledger","benjamini_yekutieli","joint_max_t","spa_reality_check"],"out_of_sample":["chronological_walk_forward","purge_embargo","issuer_holdout","untouched_epoch_holdout"],"calibration":["brier","log_score","crps","reliability","forward_ledger"]},"authority":{"tier":"shadow","is_context_only":true,"may_explain":true,"may_flag_attention":true,"may_deescalate":false,"may_rank":false,"may_gate":false,"may_size":false,"may_originate":false,"may_rewrite_geometry":false,"may_boost_confidence":false},"contracts":{"event":"biopharma.event.v1","neural_web":"neuralweb.biopharma_seasonality_state.v1","prophet":"prophet.seasonality_overlay/v1","calendar_index":"biopharma_seasonality.index.v1","calendar_entity":"biopharma_seasonality.entity.v1"}}