# Square Robot x Marathon Petroleum revision history

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

Partnership: [Square Robot x Marathon Petroleum](/partnerships/square-robot-x-marathon-petroleum.md)

## Recorded posture

- First recorded event: 2025-12-15
- Last material change: 2025-12-15
- 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/square-robot-x-marathon-petroleum/history. REST: /v1/partnerships/2dce8c87-93ae-4cef-bb7b-210301fbe24c/history. HTML: [/partnerships/square-robot-x-marathon-petroleum/history](/partnerships/square-robot-x-marathon-petroleum/history)._