# Tempo revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Model: [Tempo](/models/carepredict-tempo.md)

## Recorded posture

- First recorded event: 2026-06-07
- Last material change: 2026-06-07
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-07**: created (source: backfill_script) (verified)

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date. To restate a recorded change, write a new event through the updateEntityField chokepoint.

_Canonical URL: /models/carepredict-tempo/history. REST: /v1/models/96619499-2c5f-4682-8830-4844807fe341/history. HTML: [/models/carepredict-tempo/history](/models/carepredict-tempo/history)._