# Houston Mechatronics x Petrobras revision history

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

Partnership: [Houston Mechatronics x Petrobras](/partnerships/houston-mechatronics-x-petrobras.md)

## Recorded posture

- First recorded event: 2026-08-22
- Last material change: 2026-08-22
- 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/houston-mechatronics-x-petrobras/history. REST: /v1/partnerships/f5f17d7b-0537-44d3-b824-f2c87a73ad11/history. HTML: [/partnerships/houston-mechatronics-x-petrobras/history](/partnerships/houston-mechatronics-x-petrobras/history)._