# Quantum DC revision history

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

Company: [Quantum DC](/companies/quantum-dc.md)

## Recorded posture

- First recorded event: 2026-10-30
- Last editorial change: 2026-10-31
- Material event count: 0
- Editorial event count: 4

## Editorial events (2)

- **2026-10-31**: field_updated on `keyFacts` (source: db-trigger)
- **2026-10-31**: field_updated on `description` (source: db-trigger)

## 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. To restate a recorded change, write a new event through the updateEntityField chokepoint.

_Canonical URL: /companies/quantum-dc/history. REST: /v1/companies/f66d2e64-6874-47cb-93a7-fc65fda3fca9/history. HTML: [/companies/quantum-dc/history](/companies/quantum-dc/history)._