# Jefferson Lab x RadiaBeam (Accelerator Transmutation) revision history

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

Partnership: [Jefferson Lab x RadiaBeam (Accelerator Transmutation)](/partnerships/jefferson-lab-x-radiabeam-accelerator-transmutation.md)

## Recorded posture

- First recorded event: 2026-02-25
- Last material change: 2026-02-25
- Material event count: 1
- Editorial event count: 0

## 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: /partnerships/jefferson-lab-x-radiabeam-accelerator-transmutation/history. REST: /v1/partnerships/c4f4df26-ee69-4e17-af38-42746bfe25e2/history. HTML: [/partnerships/jefferson-lab-x-radiabeam-accelerator-transmutation/history](/partnerships/jefferson-lab-x-radiabeam-accelerator-transmutation/history)._