# Carlo Ratti revision history

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

Person: [Carlo Ratti](/people/carlo-ratti.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 person, see the person 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: /people/carlo-ratti/history. REST: /v1/people/a0afe0d5-5202-4008-934a-757811aefa40/history. HTML: [/people/carlo-ratti/history](/people/carlo-ratti/history)._