{
  "schema": "https://hlido.eu/schemas/attestation/v1.json",
  "schema_version": "1.0",
  "slug": "vellum-ai",
  "name": "Vellum",
  "score": 78,
  "tier": "STEADY",
  "category": "Frameworks & Eval",
  "evidence_count": 5,
  "proof_depth": null,
  "last_tested": "2026-05-01",
  "review_url": "https://hlido.eu/reviews/vellum-ai/",
  "scorecard_url": "https://hlido.eu/data/scorecards/vellum-ai.json",
  "signature": "29d880b348c12fa7cdf59f8cf07410b4e50bc9508b0c5ead6055946dadf92652",
  "signed_at": "2026-05-09T22:33:53.150Z"
}