# Weights & Biases x Data Holdings revision history

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

Partnership: [Weights & Biases x Data Holdings](/partnerships/weights-and-biases-x-data-holdings.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04). For the current state of this partnership, see the partnership 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.

_Canonical URL: /partnerships/weights-and-biases-x-data-holdings/history. REST: /v1/partnerships/9abc7597-a2c7-47f2-af3d-41c377183f16/history. HTML: [/partnerships/weights-and-biases-x-data-holdings/history](/partnerships/weights-and-biases-x-data-holdings/history)._