History & records
Ullr keeps the state of the mountain over time, not just today. You can ask what was open at 9am on a Saturday in February and get an answer — useful for incident review, insurance questions and season reporting.
Outline — not yet written
Outline below.
Looking at a past moment
- Where the time control lives
- What is reconstructed and what is not
Object history
- A single feature’s or trail’s timeline
- Who changed what, and when
Exporting
- What can be exported, and in what format
Through the API
History is available programmatically — see history and timestamps. Note that history scopes are never granted to a key by default.