# Esper Bionics revision history

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

Company: [Esper Bionics](/companies/esper-bionics.md)

## Recorded posture

- First recorded event: 2026-06-27
- Last material change: 2026-06-27
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-27**: verification_state_change on `reviewStatus` `unreviewed` -> `reviewed` (source: https://emag.medicalexpo.com/the-body-is-not-a-limit-with-the-esper-hand-prosthetic-arm/) (verified)

## 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/esper-bionics/history. REST: /v1/companies/52f98d2a-bc0c-48ab-b6a1-ea3b31d0f79b/history. HTML: [/companies/esper-bionics/history](/companies/esper-bionics/history)._