{
  "phase": "Phase 8: Metadata Audit",
  "timestamp": "2026-07-21 23:14:20",
  "field_completeness": {
    "space_group": 16,
    "band_gap": 151
  },
  "tier_distribution": {
    "gold": 96242,
    "validated": 140382,
    "raw": 30108
  },
  "source_distribution": {
    "mp": 69279,
    "jarvis": 25673,
    "oqmd": 171780
  },
  "family_distribution": {
    "layered_oxide": 42015,
    "unknown": 4949,
    "halide_sse": 18803,
    "sulfide_sse": 16359,
    "borohydride": 646,
    "intermetallic": 166930,
    "oxide": 11928,
    "polyanion": 4519,
    "nasicon": 560,
    "garnet": 23
  },
  "id_formats": {
    "mp-": 69279,
    "other": 197453
  },
  "stale_quality_flags": 171764,
  "findings": [
    {
      "severity": "LOW",
      "phase": "completeness",
      "check": "missing_band_gap",
      "status": "151 (0.1%)",
      "detail": ""
    },
    {
      "severity": "LOW",
      "phase": "completeness",
      "check": "missing_space_group",
      "status": "16 (0.0%)",
      "detail": ""
    },
    {
      "severity": "PASS",
      "phase": "provenance",
      "check": "all_have_provenance",
      "status": "",
      "detail": ""
    },
    {
      "severity": "PASS",
      "phase": "structure",
      "check": "all_have_structure",
      "status": "",
      "detail": ""
    },
    {
      "severity": "MEDIUM",
      "phase": "metadata",
      "check": "missing_structured_formula",
      "status": "266,732 entries",
      "detail": ""
    },
    {
      "severity": "MEDIUM",
      "phase": "metadata",
      "check": "nonstandard_ids",
      "status": "197,453 nonstandard IDs",
      "detail": ""
    },
    {
      "severity": "MEDIUM",
      "phase": "metadata",
      "check": "stale_quality_flags",
      "status": "171,764 OQMD entries flagged missing_spacegroup but SG now populated",
      "detail": "flags need recalculation"
    }
  ],
  "summary": {
    "CRITICAL": 0,
    "HIGH": 0,
    "MEDIUM": 3,
    "LOW": 2,
    "PASS": 2
  }
}