{
  "apiVersion": "v1",
  "methodology": "https://sourcescore.org/methodology/",
  "canonical": "https://sourcescore.org/claims/99340a18716a44fb/",
  "claim": {
    "vertical": "ai-ml",
    "subject": "Claude 3 family (Opus, Sonnet, Haiku)",
    "predicate": "released_on",
    "object": "2024-03-04",
    "confidence": 1,
    "sources": [
      {
        "url": "https://www.anthropic.com/news/claude-3-family",
        "title": "Introducing the next generation of Claude",
        "publisher": "Anthropic",
        "publishedDate": "2024-03-04",
        "accessedDate": "2026-05-16",
        "type": "official-blog",
        "excerpt": "Today, we're announcing the Claude 3 model family, which sets new industry benchmarks across a wide range of cognitive tasks. The family includes three state-of-the-art models in ascending order of capability: Claude 3 Haiku, Claude 3 Sonnet, and Claude 3 Opus."
      }
    ],
    "publishedAt": "2026-05-16T00:00:00Z",
    "lastVerified": "2026-05-16",
    "methodologyVersion": "veritas-v0.1",
    "tags": [
      "claude-3",
      "opus",
      "sonnet",
      "haiku",
      "anthropic",
      "release",
      "2024"
    ],
    "id": "99340a18716a44fb",
    "statement": "Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04."
  },
  "signature": {
    "algorithm": "HMAC-SHA256",
    "signedBy": "did:web:sourcescore.org",
    "signedAt": "2026-05-16T00:00:00.000Z",
    "signature": "ea90b1286b1f54fb28d17f69fc46408e1b6a032b840636c1e8b79d0cdfb20250"
  },
  "citedAs": "Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04. — SourceScore Claim 99340a18716a44fb (verified 2026-05-16, signed ea90b128…). https://sourcescore.org/claims/99340a18716a44fb/"
}