Revision history
Hitachi Building Systems revision history
Every change to this record is dated, sourced, and independently verified where marked. Nothing is edited silently.
- Tracked since
- Jun 8, 2026
- Recorded events
- 1
Company
Activity
How this log works
This timeline aggregates every dated signal on the record (creation, deployments across the company's models, verified media, incidents, and Arc G field changes), newest first. A verified event is independently confirmed; an unverified one is recorded but not yet field-verified. The Arc G field-change log is forward-only: it accrues from Arc G adoption (2026-06-04) and records material changes as they flow through the updateEntityField chokepoint. Nothing is edited silently.
Machine-readable: /companies/hitachi-building/history.md + REST /v1/companies/411e5a8b-0569-420b-b78e-14a9d3fc47d9/history.