# Hiroshi Yamakawa revision history

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

Person: [Hiroshi Yamakawa](/people/hiroshi-yamakawa-jaxa.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/hiroshi-yamakawa-jaxa/history. REST: /v1/people/93ea24be-7661-4ada-9b3a-a02f38e3b06b/history. HTML: [/people/hiroshi-yamakawa-jaxa/history](/people/hiroshi-yamakawa-jaxa/history)._