# United States Postal Service revision history

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

Company: [United States Postal Service](/companies/united-states-postal-service.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/united-states-postal-service/history. REST: /v1/companies/fcc0e7d7-5304-44ac-9e3d-c7bb900e3666/history. HTML: [/companies/united-states-postal-service/history](/companies/united-states-postal-service/history)._