| { |
| "bundle_format_version": 1, |
| "config_schema_version": 1, |
| "extras": { |
| "notes": "Inputs are min-max scaled before training using the fixed bounds stored in this bundle. Output reference scaling metadata is recorded separately and is identity.", |
| "wavelength_angstrom": { |
| "__aet_sidecar__": { |
| "format": "safetensors_v1", |
| "layout": "single_array_v1", |
| "path": "extras/wavelength_angstrom.safetensors" |
| } |
| } |
| }, |
| "fingerprint_evaluation": { |
| "atol": 1e-07, |
| "inputs": { |
| "filename": "fingerprint_evaluation/inputs.safetensors", |
| "format": "safetensors_v1", |
| "layout": "numeric_dict_tree_v1", |
| "space": "canonical_input_dict_trees_v1" |
| }, |
| "kind": "canonical_inputs_outputs_v1", |
| "outputs": { |
| "filename": "fingerprint_evaluation/outputs.safetensors", |
| "format": "safetensors_v1", |
| "layout": "numeric_dict_tree_v1", |
| "space": "canonical_output_dict_trees_v1" |
| }, |
| "rtol": 1e-05, |
| "selection_strategy": "midpoint_from_input_domain_then_reference_scaling_inputs_v1" |
| }, |
| "fit_method": "gradient", |
| "model_family_id": "mlp_v1", |
| "model_init": { |
| "hints": { |
| "input_last_axis": 3, |
| "output_last_axis": 500 |
| }, |
| "representation": "model-local init hints only" |
| }, |
| "provenance": { |
| "created_at": "2026-04-20T04:22:43.298214+00:00", |
| "dependencies": { |
| "flax": "0.12.6", |
| "jax": "0.9.2", |
| "numpy": "2.4.4", |
| "optax": "0.2.8" |
| }, |
| "git_commit": "8d46f0a70583bee4bfca376c90ab10ffc35ab9c3", |
| "platform": "macOS-26.4.1-arm64-arm-64bit", |
| "python_version": "3.12.13", |
| "toolkit": "astro_emulators_toolkit", |
| "toolkit_version": "0.1.0" |
| }, |
| "release": { |
| "name": "payne-flux-reference-example", |
| "status": "released", |
| "version": "0.1.0" |
| }, |
| "resolved": { |
| "model": { |
| "name": "mlp", |
| "params": { |
| "activation": "gelu", |
| "dtype": "float32", |
| "hidden_sizes": [ |
| 128, |
| 128 |
| ], |
| "use_bias": true |
| } |
| }, |
| "solver": { |
| "name": "gradient", |
| "params": {} |
| }, |
| "task": { |
| "name": "regression", |
| "params": { |
| "loss": "mse", |
| "loss_weights": null, |
| "metric_axes": null, |
| "metrics": [ |
| "mse", |
| "mae" |
| ] |
| } |
| } |
| }, |
| "runtime_contract": { |
| "affine_leaf_specs": { |
| "inputs/parameters": { |
| "last_axis": 3, |
| "mode": "scalar_or_last_axis" |
| }, |
| "outputs/flux": { |
| "last_axis": 500, |
| "mode": "scalar_or_last_axis" |
| } |
| }, |
| "role_paths": { |
| "input_leaf": "inputs/parameters", |
| "output_leaf": "outputs/flux" |
| }, |
| "surface": "canonical_dict_trees_v1" |
| }, |
| "spec": { |
| "input_domain": { |
| "kind": "box_v1", |
| "max_tree": { |
| "parameters": [ |
| 7000.0, |
| 5.0, |
| 0.30000001192092896 |
| ] |
| }, |
| "min_tree": { |
| "parameters": [ |
| 4500.0, |
| 2.5, |
| -0.30000001192092896 |
| ] |
| }, |
| "storage": { |
| "filename": "input_domain.safetensors", |
| "format": "safetensors_v1", |
| "layout": "split_minmax_tree_v1" |
| }, |
| "value_space": "physical_input_dict_tree_v1" |
| }, |
| "inputs": { |
| "channel_meanings_tree": { |
| "parameters": [ |
| "effective temperature", |
| "surface gravity", |
| "metallicity [Fe/H]" |
| ] |
| }, |
| "channel_names_tree": { |
| "parameters": [ |
| "teff", |
| "logg", |
| "feh" |
| ] |
| }, |
| "channel_units_tree": { |
| "parameters": [ |
| "K", |
| "dex", |
| "dex" |
| ] |
| }, |
| "leaf_meanings_tree": { |
| "parameters": "stellar labels" |
| }, |
| "leaf_units_tree": null, |
| "structure_tree": { |
| "parameters": null |
| } |
| }, |
| "outputs": { |
| "channel_meanings_tree": null, |
| "channel_names_tree": null, |
| "channel_units_tree": null, |
| "leaf_meanings_tree": { |
| "flux": "continuum-normalized flux vector on the shared wavelength grid" |
| }, |
| "leaf_units_tree": { |
| "flux": "dimensionless" |
| }, |
| "structure_tree": { |
| "flux": null |
| } |
| }, |
| "reference_scaling_inputs": { |
| "applies_to": "inputs", |
| "kind": "affine_minmax_v1", |
| "max_tree": { |
| "parameters": [ |
| 7000.0, |
| 5.0, |
| 0.30000001192092896 |
| ] |
| }, |
| "min_tree": { |
| "parameters": [ |
| 4500.0, |
| 2.5, |
| -0.30000001192092896 |
| ] |
| }, |
| "source_space": "physical_input_dict_tree_v1", |
| "storage": { |
| "filename": "reference_scaling_inputs.safetensors", |
| "format": "safetensors_v1", |
| "layout": "split_minmax_tree_v1" |
| }, |
| "target_space": "canonical_input_dict_tree_v1" |
| }, |
| "reference_scaling_outputs": { |
| "applies_to": "outputs", |
| "kind": "affine_minmax_v1", |
| "max_tree": { |
| "flux": 1.0 |
| }, |
| "min_tree": { |
| "flux": 0.0 |
| }, |
| "source_space": "canonical_output_dict_tree_v1", |
| "storage": { |
| "filename": "reference_scaling_outputs.safetensors", |
| "format": "safetensors_v1", |
| "layout": "split_minmax_tree_v1" |
| }, |
| "target_space": "physical_output_dict_tree_v1" |
| }, |
| "spec_version": 1 |
| }, |
| "weights_layout": "params_plus_model_state_v1" |
| } |
