# ITC instituted an Oura patent investigation naming the Amazfit Helio Ring revision history

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

Incident: [ITC instituted an Oura patent investigation naming the Amazfit Helio Ring](/incidents/amazfit-helio-ring-oura-itc-investigation-2025.md)

## Recorded posture

- First recorded event: 2026-06-04
- Last material change: 2026-06-04
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-04**: created (source: baseline:arc-g)

## 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.

_Canonical URL: /incidents/amazfit-helio-ring-oura-itc-investigation-2025/history. REST: /v1/incidents/28ed0709-c2c4-46d7-bf65-eb258945971c/history. HTML: [/incidents/amazfit-helio-ring-oura-itc-investigation-2025/history](/incidents/amazfit-helio-ring-oura-itc-investigation-2025/history)._