# Chevron x Toyota (Hydrogen Alliance) revision history

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

Partnership: [Chevron x Toyota (Hydrogen Alliance)](/partnerships/chevron-x-toyota-hydrogen-alliance.md)

## Recorded posture

- First recorded event: 2021-12-14
- Last material change: 2021-12-14
- Material event count: 1
- Editorial event count: 0

## 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.

_Canonical URL: /partnerships/chevron-x-toyota-hydrogen-alliance/history. REST: /v1/partnerships/b5903d2d-78e8-4ce4-87c2-c066191e2b7b/history. HTML: [/partnerships/chevron-x-toyota-hydrogen-alliance/history](/partnerships/chevron-x-toyota-hydrogen-alliance/history)._