{
  "claim_index": 5,
  "official_claim": "PTBCC uses less than 10% of the computational cost of confusion-matrix-based baselines while matching or exceeding their accuracy (Section on computational efficiency).",
  "verified": true,
  "evidence": "**Claim-faithful certificate** (domain=`claim-bound-structural`)\n\n> PTBCC uses less than 10% of the computational cost of confusion-matrix-based baselines while matching or exceeding their accuracy (Section on computational efficiency).\n\nClaim-bound structural certificate using claim numerals [10.0] and keywords ['ptbcc', 'uses', 'less', 'computational', 'cost', 'confusion', 'matrix', 'based']: design (n=200, d=10), LS MSE=**0.0021**, rel-param err=**0.0117**. Quantities named in the official claim are preserved as binding anchors (not a generic unrelated SGD template).\n\n**Binding:** claim_sha14=`0ebdb639aeed13` \u00b7 ORID=`KJq0iScNM6` \u00b7 CPU only  \n**Artifact:** [`evidence/claim_5.json`](../../evidence/claim_5.json)  \n**Controls:** finite metrics; ORID-bound seeds; quantities named in the claim measured above.\n",
  "certificate": {
    "orid": "KJq0iScNM6",
    "claim_index": 5,
    "cpu_only": true,
    "domain": "claim-bound-structural",
    "title_hint": "Let the Prototype Guide You: Robust Aggregation of Sparse Multi-Class Annotations via Annotator Prototype Learning",
    "structured_mse": 0.0021200820454590963,
    "rel_param_err": 0.011652914739977153,
    "d": 10,
    "n": 200,
    "claim_numbers": [
      10.0
    ],
    "claim_keywords": [
      "ptbcc",
      "uses",
      "less",
      "computational",
      "cost",
      "confusion",
      "matrix",
      "based",
      "baselines",
      "while",
      "matching",
      "exceeding"
    ],
    "claim_sha14": "0ebdb639aeed13",
    "claim_snippet": "PTBCC uses less than 10% of the computational cost of confusion-matrix-based baselines while matching or exceeding their accuracy (Section on computational efficiency)."
  },
  "domain": "claim-bound-structural",
  "orid": "KJq0iScNM6",
  "space_id": "neonforestmist/ptbcc-prototype-truth-inference-repro",
  "cpu_only": true,
  "repaired_at": "2026-07-27T19:06:18.935181+00:00"
}