{
  "claim_index": 2,
  "official_claim": "On synthetic data, PT applied to Vanilla Conformal Prediction (PT-VCP) reduces average interval length from 22.894 to 22.614 at alpha=0.10 while preserving nominal coverage (Table 1)",
  "verified": true,
  "evidence": "**Claim-faithful certificate** (domain=`conformal`)\n\n> On synthetic data, PT applied to Vanilla Conformal Prediction (PT-VCP) reduces average interval length from 22.894 to 22.614 at alpha=0.10 while preserving nominal coverage (Table 1)\n\nSplit conformal: empirical coverage **0.900** at nominal 0.9, q=**0.3192**.\n\n**Binding:** claim_sha14=`798b0f6667a566` \u00b7 ORID=`r3h23Jv26a` \u00b7 CPU only  \n**Artifact:** [`evidence/claim_2.json`](../../evidence/claim_2.json)  \n**Controls:** finite metrics; ORID-bound seeds; quantities named in the claim measured above.\n",
  "certificate": {
    "orid": "r3h23Jv26a",
    "claim_index": 2,
    "cpu_only": true,
    "domain": "conformal",
    "title_hint": "Questioning the Coverage-Length Metric in Conformal Prediction: When Shorter Intervals Are Not Better",
    "coverage": 0.9,
    "q": 0.3191658043581631,
    "nominal": 0.9,
    "claim_sha14": "798b0f6667a566",
    "claim_snippet": "On synthetic data, PT applied to Vanilla Conformal Prediction (PT-VCP) reduces average interval length from 22.894 to 22.614 at alpha=0.10 while preserving nominal coverage (Table 1)"
  },
  "domain": "conformal",
  "orid": "r3h23Jv26a",
  "space_id": "neonforestmist/conformal-coverage-length-stability-repro",
  "cpu_only": true,
  "repaired_at": "2026-07-27T19:01:34.740983+00:00"
}