Astro Emulators Toolkit Bundle

Summary:
  model: mlp
  release: payne-flux-reference-example@0.1.0 (released)
  bundle_format_version: 1
  config_schema_version: 1
  spec_version: 1
  weights_layout: params_plus_model_state_v1
  model_family_id: mlp_v1
  fingerprint_evaluation: present
  task: regression
  fit_method: gradient
  role_paths: {'input_leaf': 'inputs/parameters', 'output_leaf': 'outputs/flux'}

Domain:
  input_domain: {'kind': 'box_v1', 'max_tree': {'inputs': {'parameters': [7000.0, 5.0, 0.30000001192092896]}}, 'min_tree': {'inputs': {'parameters': [4500.0, 2.5, -0.30000001192092896]}}, 'space': 'canonical_input_dict_trees_v1', 'storage': {'filename': 'input_domain.safetensors', 'format': 'safetensors_v1', 'layout': 'split_minmax_tree_v1'}}
  extras: ['notes', 'wavelength_angstrom']

Provenance:
  toolkit_version: 0.1.0
  created_at: 2026-04-12T14:23:17.605616+00:00
  python_version: 3.12.13
  git_commit: e922f60957ded21c91aca36a1d11b2bd269cc082

spec:
input_domain:
  kind: box_v1
  max_tree:
    inputs:
      parameters:
        - 7000.0
        - 5.0
        - 0.30000001192092896
  min_tree:
    inputs:
      parameters:
        - 4500.0
        - 2.5
        - -0.30000001192092896
  space: canonical_input_dict_trees_v1
  storage:
    filename: input_domain.safetensors
    format: safetensors_v1
    layout: split_minmax_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: None
  structure_tree:
    parameters: None
outputs:
  channel_meanings_tree: None
  channel_names_tree: None
  channel_units_tree: None
  leaf_meanings_tree:
    flux: continuum-normalized flux vector on the shared wavelength grid
  leaf_units_tree:
    flux: dimensionless
  structure_tree:
    flux: None
reference_scaling:
  kind: affine_v1
  max_tree:
    inputs:
      parameters:
        - 7000.0
        - 5.0
        - 0.30000001192092896
    outputs:
      flux: 1.0
  min_tree:
    inputs:
      parameters:
        - 4500.0
        - 2.5
        - -0.30000001192092896
    outputs:
      flux: 0.0
  parametrization: minmax
  space: canonical_dict_trees_v1
  storage:
    filename: reference_scaling.safetensors
    format: safetensors_v1
    layout: split_minmax_tree_v1
spec_version: 1

Note: this bundle is the canonical emulator artifact. Physical-space composition is external.