# US11822342B1 revision history

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

Patent: [US11822342B1](/patents/patent-us11822342b1-built-obstacle-map.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04). For the current state of this patent, see the patent page._

## 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: /patents/patent-us11822342b1-built-obstacle-map/history. HTML: [/patents/patent-us11822342b1-built-obstacle-map/history](/patents/patent-us11822342b1-built-obstacle-map/history)._