VERIFIED PAPER CASE · 5 MIN
BTC 5-Minute Signal Post-Mortem: +44.76 pp Edge
Bitcoin Up or Down - July 28, 5:55AM-6:00AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 3.5%Marx Fair UP 3.5%
Jul 28, 09:55 AMJul 28, 09:57 AMJul 28, 09:58 AMJul 28, 10:00 AMJul 28, 10:02 AM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T09:55:02.976Z | 50.5% | 0.0% | -50.5 pp |
| 2026-07-28T09:55:07.353Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-28T09:56:39.268Z | 50.5% | 50.5% | +0.0 pp |
| 2026-07-28T09:56:54.781Z | 50.5% | 0.0% | -50.5 pp |
| 2026-07-28T09:58:38.491Z | 50.5% | 50.5% | +0.0 pp |
| 2026-07-28T09:58:56.911Z | 50.5% | 0.0% | -50.5 pp |
| 2026-07-28T09:59:44.909Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-28T10:00:12.381Z | 3.5% | 3.5% | +0.0 pp |
| 2026-07-28T10:00:30.941Z | 3.5% | 3.5% | +0.0 pp |
| 2026-07-28T10:00:36.164Z | 3.5% | 3.5% | +0.0 pp |
| 2026-07-28T10:01:07.085Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-28T10:01:07.300Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-28T10:02:54.796Z | 3.5% | 3.5% | +0.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.0% while the Polymarket UP price was 50.5%.
- The executable DOWN entry was 53.0¢ with a net modeled edge of 44.8 percentage points.
- Model confidence at the signal was 83.3%.
- Observed order-book spread at entry was 1.0¢.
MODEL NOTE
Marx AI inference
Buy DOWN: $100 VWAP 53.0%, gross edge 47.0%, slippage 0.0%, fee 1.7%, safety 0.5%, net edge 44.8%. Marx fair UP is 0.0%.