TAIL.
Receipts, not vibes.
Free · no screenshots
Turn any prediction-market win into verified proof. Free.
The prediction market truth layer. Receipts, not screenshots.
Every receipt is rebuilt from exchange fill data on Kalshi and Polymarket, and minted only once the market resolves. No self-reported records. The losses are on the same page as the wins, in the same size.
Verify a winSmart money · 25 Jul 2026
Sample data- $4,860Fed cuts rates in September
0x4f2a…e91dBought YES 9,000 @ 54¢polymarket25 Jul 12:41 UTC
- $1,888Fed cuts rates in September
@peg_watcherSold YES 3,200 @ 59¢polymarket25 Jul 16:20 UTC
- $1,722Fed cuts rates in September
@cpi_hawkBought NO 4,200 @ 41¢kalshi25 Jul 13:52 UTC
0x4f2a…e91dYES 19¢ → 97¢polymarket
Top callers · 30D
Sample data- #10x4f2a…e91d+412%
- #2@nqwizard+150%
- #3@peg_watcher+61%
- #4@cpi_hawk−18%
- #5@downballot+27%
Ranked by calibration-weighted score, not by return — which is why a caller can rank while down on the window.