Release v1.1

This release is the proof that the rules came first.

Commit f4c2993 was published on 28 September 2026 at 07:57 UTC, four hours before the collector saved its first forecast. It contains the collector and the complete scoring rules. Nothing in the scoring has changed since.

What is locked here

• The sources: DMI, MET Norway, OpenWeatherMap (free 3-hour forecast) and the pilots' TAF at Aalborg and Copenhagen airports.
• Five Danish cities and the DMI stations they are measured at.
• Forecasts saved four times a day (00, 06, 12, 18 UTC), up to 72 hours ahead, each download hash-chained before the weather happens.
• The scoring: temperature error and bias per lead time, rain/no rain per six-hour period, calibration of rain probabilities, and a lazy baseline, "tomorrow will be like today".

How to check it

• The SHA-256 of kvx_weather.py in this release is 0464d697589594b6f427be4d01e5f5fd7f7f9a4867281f00b6d212dcab5f6360, recorded in METHOD.lock.
• Every day the newest hash of the chain is committed to anchors/chain-heads.csv, together with the hash of the code the server is running. If it ever differs from the one above, it will show there.
• A new version of the collector requires a new line in METHOD.lock, and CI fails without it.

What comes next

First scoreboard around 28 October 2026, marked preliminary. Live status: https://kvantix.tech/playground/weather/