# Mira revision history

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

Model: [Mira](/models/mira.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: [{"url":"https://www.nasaspaceflight.com/2023/11/transporter-9/","title":"SpaceX Transporter 9 rideshare features new OTV from Tom Mueller's Impulse Space","sourceName":"NASASpaceFlight"}]) (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/mira/history. REST: /v1/models/c2f5f6ac-c93f-4250-8b20-f4cfd9806de2/history. HTML: [/models/mira/history](/models/mira/history)._