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{
  "id": "specialists-jc-lead-ep149",
  "family": "specialists",
  "training_corpus": "JC",
  "recipe": "legacy",
  "target_role": "lead",
  "epoch": 149,
  "release_inclusion": "confirmed",
  "artifact_status": "published",
  "planned_checkpoint_path": "specialists/JC/legacy/lead/epoch_0149.pt",
  "original_checkpoint_filename": "model_htdemucs_ep_149_si_sdr_9.6743.ckpt",
  "original_checkpoint_sha256": "0a37e456852527fd2d0c7d983ba086f1ebb15064a39633f99c06cbbb37914c28",
  "released_checkpoint_sha256": "4825c5864e9297d2e1bc7977ea5879af522f182b56483581bf14b90b8c18f465",
  "download_url": "https://huggingface.co/AcappellaSet/ACappellaSet-Models/resolve/main/specialists/JC/legacy/lead/epoch_0149.pt",
  "weight_license": "cc-by-nc-4.0",
  "output_contract": {
    "residual_index": 0,
    "target_index": 1
  },
  "artifact_format": "pytorch_state_dict",
  "original_hash_verification": "PASS, full-file SHA-256, 2026-10-14",
  "intended_weight_license": "cc-by-nc-4.0",
  "license_review_status": "assigned; applicable upstream notices preserved",
  "notice_path": "WEIGHTS_NOTICE.md",
  "config": "configs/specialists/JC/lead_vocal.yaml",
  "config_sha256": "dcb7bb687bad3a7f00d03491b3fba10fa12a2b5777025cc04c2a68fcfda311e0",
  "inference_model_id": "specialists-jc-lead-ep149",
  "checkpoint_contents": "Inference-only checkpoint; all original model and matching encoder tensors preserved; no optimizer state, training arguments, or internal paths.",
  "released_checkpoint_bytes": 109785182,
  "public_inference_status": "published_export_strict_loading_verified",
  "weights_only": true,
  "validation_report": "https://github.com/pting126/ACappellaSet/blob/main/docs/validation/inference-exports-2026-10-22.json"
}