[
  {
    "schema_version": "0.3.0",
    "doc_type": "record",
    "dataset": "on003380",
    "bids_relpath": "sub-12/eeg/sub-12_eeg.edf",
    "modality": "EEG",
    "datatype": "eeg",
    "suffix": "eeg",
    "file_extension": ".edf",
    "entities": {
      "subject": "12"
    },
    "signal_summary": {
      "nchans": 9,
      "ntimes": 644000,
      "recording_duration": 322.0,
      "channel_type_counts": {
        "ECOG FRONTAL LEFT": 1,
        "ECOG FRONTAL RIGHT": 1,
        "ECOG PARIETAL RIGHT": 1,
        "ECOG CENTRAL LEFT": 1,
        "ECOG CENRAL RIGHT": 1,
        "ECOG TEMPORAL LEFT": 1,
        "ECOG TEMPORAL RIGHT": 1,
        "ECOG OCCIP LEFT": 1,
        "ECOG OCCIP RIGHT": 1
      }
    },
    "provenance": {
      "digested_at": "2026-06-07T18:48:43.341Z"
    }
  }
]