{
  "model_type": "pinn_jepa_pretrain",
  "stage": "step1_pinn_pretrain",
  "fps": 30.0,
  "hidden_ratio": 2,
  "encoder": {
    "J": 17,
    "d_model": 256,
    "depth": 6,
    "d_state": 64,
    "temporal_kernel": 5,
    "mlp_ratio": 2,
    "dropout": 0.0,
    "use_checkpoint": false
  },
  "input_layout": {
    "shape": "(B, T, J, 12)",
    "channels": ["p(3)", "v(3)", "a(3)", "j(3)"],
    "skeleton": "H36M17"
  },
  "_comment": "These are architecture DEFAULTS. If the released checkpoint was trained with different values (d_model/depth/etc.), edit them here so load_state_dict shapes match. Set use_checkpoint=false for inference."
}