# Rio Tinto revision history

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

Company: [Rio Tinto](/companies/rio-tinto.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: /companies/rio-tinto/history. REST: /v1/companies/aaef0e77-66b9-4293-94cc-f2cfa1307ce6/history. HTML: [/companies/rio-tinto/history](/companies/rio-tinto/history)._