# YSD-0130 — Gold-set and seeded-corpus licensing posture

- **Status:** approved (2026-07-18)
- **Priority:** P0 EXT — blocking (production rollout gated via YSD-0139)
- **Decision owner:** @GreyChimp
- **Drafted:** 2026-07-18 by Claude Code (claude-fable-5)
- **Approval:** approved as recommended by @GreyChimp on 2026-07-18; outcome
  recorded in decision-log.json; review by 2027-07-18

## Question

What licensing posture governs evaluation gold sets and seeded corpora?

## Recommendation

Three admitted source classes only: (1) public-domain/openly-licensed works with
verified jurisdiction and license version (YSD-4008); (2) creator-owned/internal
material with participant consent; (3) explicitly licensed evaluation sets with
written grants covering annotation derivatives, evaluation use, and expert
review. No scraped commercial media; no in-repo fabricated benchmark numbers
(per the 2026-07-05 Meshy audit precedent). Expert-review terms drafted per
engagement and recorded with the set.

## Options considered

- Fair-use-based commercial sampling — rejected: region-dependent, revocable,
  and contradicts the deny-by-default rights posture.

## Consequences

- Section 18.1 evaluation items consume only sets admitted under this posture;
  each gold set records its class, grant evidence, and permitted uses.

## Machine-enforced outcome (once approved)

Evaluation harness refuses sets without a recorded rights class + grant
reference; YSD-18001+ items enforce.