{
  "schema": "https://hlido.eu/schemas/attestation/v1.json",
  "schema_version": "1.0",
  "slug": "sierra-ai",
  "name": "Sierra",
  "score": 53,
  "tier": "FADING",
  "category": "Customer Experience",
  "evidence_count": 5,
  "proof_depth": null,
  "last_tested": "2026-05-01",
  "review_url": "https://hlido.eu/reviews/sierra-ai/",
  "scorecard_url": "https://hlido.eu/data/scorecards/sierra-ai.json",
  "signature": "eba301a6461ba6e0049b8c88eabc16ad5fa30535ff0efbfd40edf0593fd87318",
  "signed_at": "2026-05-09T22:33:53.150Z"
}