{
  "artifact": {
    "bytes": 474892,
    "format": "joblib",
    "path": "classifier.joblib",
    "sha256": "5e6ecfc68d78a2cf2e9e9e47da5cb58d696e8de354fd620cfcccc5db9da48702"
  },
  "known_limitations": [
    "The artifact does not embed its own version, thresholds, backbone hash, or training manifest.",
    "Later audits found a high false-positive rate on some bird vocalizations.",
    "Bee and grasshopper classes were data-limited in the surviving evaluation notes.",
    "Published metrics came from limited public-data evaluation and one private field site; they are not evidence of general production performance.",
    "Outputs are model assertions for human review, not confirmed biological observations."
  ],
  "model_contract": {
    "backbone": {
      "artifact": "BirdNET_GLOBAL_6K_V2.4_Model_FP16.tflite",
      "sha256": "5c64ba3ffab264ccbfafe784896392051a86be63b0cc507e7683db7df114546b"
    },
    "classes": [
      "background",
      "bee",
      "cicada_drone",
      "cricket_katydid",
      "frog",
      "grasshopper"
    ],
    "feature_dimension": 6522,
    "feature_space": "birdnet_v2.4_logits",
    "output_semantics": "independent one-vs-rest probabilities",
    "sample_rate_hz": 48000,
    "serialization_runtime": {
      "scikit_learn": "1.8.0"
    },
    "window_seconds": 3.0
  },
  "provenance": {
    "code_license": "CC-BY-NC-SA-4.0",
    "field_site": "one private field site; location intentionally omitted",
    "source_families": [
      {
        "license": "CC-BY-4.0 or CC0 according to source metadata",
        "name": "InsectSet459"
      },
      {
        "license": "CC-BY-NC-3.0",
        "name": "ESC-50"
      },
      {
        "license": "varies by individual recording; original per-record manifest unavailable",
        "name": "iNaturalist audio"
      },
      {
        "license": "private research evidence; not redistributed",
        "name": "private field negatives"
      }
    ],
    "training_snapshot": "unavailable",
    "warning": "The missing per-record training snapshot prevents a complete independent rebuild of this exact artifact."
  },
  "release_id": "insectnet-v0.1.0",
  "schema_version": 1,
  "status": "historical_research_reference"
}