The same city, the same day — member appendix
All five cities, the matched clock comparison, what trading Kalshi against Polymarket's price would have cost, every disagreement, and the method.
Read more
The time in a Kalshi ticker is Eastern, not UTC
Two markets, two offsets, one time zone. What it broke here, and the field to use instead.
Kalshi gives away months of history. Here is what is in it
Every market since December, the full trade tape, one minute candles with bid and ask, free and without a key. And the one thing it does not serve.
What settles a Kalshi commodity market: Pyth, and which feed
The exact Pyth index feed behind each of the five fifteen minute commodity series, why the spot feed is not it, and why there is no strike in the ticker.
The retired rules: pair completion, in full
The two-sided lane that looked best on paper and lost real money in three days. The rule, the cages, the orphan problem, and the repair that broke our own law.