{
  "schema_version": 13,
  "document_kind": "drawn_waveform",
  "drawn_waveform": {
    "data": [
      0,
      1,
      0,
      -1
    ],
    "resample_mode": "cardinal-clip=0.926417",
    "wrap": true
  },
  "notes": [
    "Four-cardinal harder square — cardinal-clip=0.926417",
    "Raw Cardinal is hard-clipped to [-1,+1] during reconstruction; the larger public amount creates wider rail plateaus."
  ]
}