Forecasting Accuracy& Backtest Ledger
Transforming model divergence into an empirical moat. Every Alpha Gap published since September 2026 is tracked, Brier-scored upon real-world resolution, and benchmarked against prediction market consensus.
Crowd comparison and calibration alpha (+3,480bps) are claimed strictly on verified, live order-book contracts. Internal foresight scenarios are scored on model Brier alone against primary sources with crowd columns displayed as “—”.
Following rigorous internal audit, retroactive entry candidate res-2026-08-28-01(US-China bilateral trade framework "before July") was permanently purged from Contract-Settled accounting. A pre-commitment timestamped after an event window has closed violates the mathematical guarantee of immutability. All active Contract-Settled rows are strictly bound to forward-looking timestamps where publication strictly preceded resolution.
Ground truth resolved
Mean error across 1 settled contracts
Mean crowd error across Polymarket order books
Empirical Brier divergence
Polymarket Consensus vs. Sovereign Model
Quantifying empirical pricing asymmetry: Institutional order-book crowd consensus compared against cryptographically locked sovereign priors.
Will Federal Reserve initiate 50bps benchmark interest rate cut at September 2026 FOMC?
FOMC reiterated measured 25bps recalibration rather than 50bps emergency easing, confirming model divergence against Polymarket consensus.
Model Brier: 0.036 vs. Polymarket Crowd Brier: 0.384. Sovereign foresight successfully faded crowd emergency-cut euphoria.
| Dispatch Date | Prediction & Settlement Type | Model Odds | Crowd Odds | Outcome | Model Brier | Crowd Brier / Alpha | Primary Document Evidence |
|---|---|---|---|---|---|---|---|
2026-09-02 ec0184c35a… | Geopolitics & MacroLive Polymarket Contract Will Federal Reserve initiate 50bps benchmark interest rate cut at September 2026 FOMC? FOMC reiterated measured 25bps recalibration rather than 50bps emergency easing, confirming model divergence against Polymarket consensus. | 19% | 62% Gap: -43% | NO (0) | 0.036 | 0.384 crowd +3480 bps | View FilingFederal Reserve Board: FOMC Statement & Minutes (Sep 2026) |
2026-09-04 f23829e043… | Geopolitics & MacroLive Polymarket Contract Will the Fed increase interest rates by 50+ bps after the September 2026 meeting? Model prices a 72% probability of aggressive 50+ bps rate hike driven by energy grid constraints and Strait of Hormuz inflation shock, versus a 1% crowd expectation. | 72% | 1% Gap: +71% | PENDING Horizon: September 2026 FOMC (Pending Resolution) | — | — | View FilingFederal Reserve Board: FOMC Statement & Projections (September 2026) |
2026-09-04 09dc215b82… | Geopolitics & MacroLive Polymarket Contract Will the U.S. invade Iran before 2027? Model prior reflects 25% risk of kinetic response to protect Persian Gulf and Strait of Hormuz energy transit corridors against crowd consensus of 14%. | 25% | 14% Gap: +11% | PENDING Horizon: December 31, 2026 (Active Polymarket Market) | — | — | View FilingPolymarket Oracle & Department of Defense Kinetic Engagement Releases |