VERIFIED PAPER CASE · 5 MIN
BTC 5-Minute Signal Post-Mortem: +47.75 pp Edge
Bitcoin Up or Down - July 28, 6:00PM-6:05PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 99.5%Marx Fair UP 99.5%
Jul 28, 10:01 PMJul 28, 10:03 PMJul 28, 10:05 PMJul 28, 10:07 PMJul 28, 10:09 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T22:01:00.024Z | 15.5% | 50.5% | +35.0 pp |
| 2026-07-28T22:01:03.940Z | 50.5% | 50.5% | +0.0 pp |
| 2026-07-28T22:01:15.143Z | 15.5% | 15.5% | +0.0 pp |
| 2026-07-28T22:02:01.610Z | 15.5% | 0.0% | -15.5 pp |
| 2026-07-28T22:02:01.988Z | 15.5% | 0.0% | -15.5 pp |
| 2026-07-28T22:02:46.034Z | 30.5% | 0.0% | -30.5 pp |
| 2026-07-28T22:03:40.097Z | 30.5% | 0.0% | -30.5 pp |
| 2026-07-28T22:04:41.603Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T22:05:40.507Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T22:06:41.683Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T22:07:42.276Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T22:07:46.544Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T22:08:44.477Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T22:09:41.684Z | 99.5% | 99.5% | +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 50.0¢ with a net modeled edge of 47.7 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 50.0%, gross edge 50.0%, slippage 0.0%, fee 1.8%, safety 0.5%, net edge 47.7%. Marx fair UP is 0.0%.