Fairshift Lab v1.2.0 — External Evidence
Fairshift Lab v1.2.0 adds governed historical observational evidence without blurring it into the synthetic laboratory.
Highlights:
- pre-result dataset admission gate with documented acceptance, deferral, and rejection decisions
- checksum-pinned UCI Adult acquisition with no raw-data redistribution
- 48-cell sensitivity registry across five split seeds, two cohorts, two missingness rules, three error-cost declarations, and four policy families
- accessible External Evidence interface with limitations and uncertainty before rankings
- provenance manifest, dataset card, preregistered protocol, bounded report, and updated continuation brief
- 100% Python statement and branch coverage; web, accessibility, reproducibility, dependency, and CodeQL gates pass
Scientific boundary: UCI Adult is a 1994 Census-derived historical reference table. Its label is not merit, qualification, need, or ground truth; its binary provider sex field is not identity truth. This release is not external peer review, current-population validation, a policy recommendation, legal advice, fairness certification, or deployment approval.