{
  "audit_date": "2026-09-24",
  "stage": "article preparation, after the frozen pilot",
  "source_artifact_id": "mrnabench-discrepancies-table",
  "source_sha256": "d49ff1b4dacdfe0663c35bdad6a9ad91e79f5862fe96f36a627acb8407610bf3",
  "prepared_artifact_id": "mrnabench-discrepancies-prepared",
  "prepared_sha256": "e5d6fb9e5fadec1f9e6235ca3ed2054ac05f476ccc8f5dc67ec500febeae8237",
  "prepared_sequence_lengths_verified": true,
  "test_rows": 15003,
  "feature_counts": {
    "sequence_length": {
      "855": 15003
    },
    "length_band": {
      ">500": 15003
    },
    "gc_band": {
      "0.4-0.6": 10576,
      ">0.6": 4427
    }
  },
  "interpretation": "All prepared test inputs have the same recorded length. Length stratification would yield no between-group comparison in this representation. Two recorded GC bands exist; no outcome-by-GC analysis was performed by this check.",
  "limitations": "Descriptive metadata only. Prepared-input length is not an inference about variable-region length or a biological mechanism. No predictions, outcomes, identities or sequences are exported."
}