# Epic Systems revision history

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

Company: [Epic Systems](/companies/epic-systems.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04) and records material changes as they flow through the updateEntityField chokepoint. For the current state of this company, see the company 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. To restate a recorded change, write a new event through the updateEntityField chokepoint.

_Canonical URL: /companies/epic-systems/history. REST: /v1/companies/5f5c4ed0-48f6-48ea-8753-91000a2c731a/history. HTML: [/companies/epic-systems/history](/companies/epic-systems/history)._