VERIFIED PAPER CASE · 5 MIN
BTC 5-Minute Signal Post-Mortem: +44.76 pp Edge
Bitcoin Up or Down - July 28, 7:15AM-7:20AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 100.0%Marx Fair UP 99.5%
Jul 28, 11:15 AMJul 28, 11:17 AMJul 28, 11:20 AMJul 28, 11:22 AMJul 28, 11:24 AM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T11:15:32.581Z | 67.5% | 49.5% | -18.0 pp |
| 2026-07-28T11:16:30.874Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T11:16:35.454Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T11:16:47.141Z | 67.5% | 67.5% | +0.0 pp |
| 2026-07-28T11:16:58.186Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T11:17:30.967Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T11:18:31.051Z | 99.5% | 49.5% | -50.0 pp |
| 2026-07-28T11:18:34.729Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T11:18:58.220Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T11:19:30.894Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T11:20:31.129Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T11:20:35.134Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T11:21:05.500Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T11:21:32.220Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T11:22:34.544Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T11:22:40.055Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T11:23:55.582Z | 100.0% | 99.5% | -0.5 pp |
| 2026-07-28T11:24:07.691Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T11:24:31.002Z | 100.0% | 99.5% | -0.4 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%.