{"artifact_id":"L1-372","layer":"L1","title":"Supernova Light Curve Fitting","domain":"Astrophysics","sub_domain":"Transient photometry","physics_fingerprint":{"L_DAG":2.8,"title":"Supernova Light Curve Fitting","domain":"Astrophysics","carrier":"photon","primitives":["G.structured","O.chi2.lightcurve","S.k_correction.photometric"],"sub_domain":"Transient photometry","noise_model":"observation_gaussian","problem_class":"parameter_estimation","solution_space":"lc_parameter_vector","difficulty_delta":3,"integration_axis":"temporal_photometric","sensing_mechanism":"photometric_lc_sampling"},"observable_profile":{"metric":"distance_modulus_RMSE_mag","regime":"Existence of the recovered lc_parameter_vector is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 20); host_galaxy_dust_uncertainty dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Observation gaussian sets the irreducible data-fidelity floor.","secondary":"Hubble_residual_sigma"},"size_tiers":{"center_spec":{"omega":{"N_bands":4,"N_epochs":20,"redshift_z":0.5,"photometric_noise_mmag":5.0},"input_format":"measurement_only","problem_class":"parameter_estimation","forward_operator":"photometric_lc_sampling","epsilon_fn_center":"0.12 distance_modulus_RMSE_mag"},"omega_bounds":{"N_bands":[3,6],"N_epochs":[5,100],"redshift_z":[0.01,2.0],"photometric_noise_mmag":[1.0,50.0]},"epsilon_bounds":{"distance_modulus_RMSE_mag":[0.05,0.3]},"allowed_problem_classes":["parameter_estimation"],"allowed_omega_dimensions":["N_epochs","N_bands","photometric_noise_mmag","redshift_z"],"allowed_forward_operators":["photometric_lc_sampling"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":500,"metric":"distance_modulus_RMSE_mag"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x40624c6a7dafde3ec3b1fff82eadd3e283922ec56280673b45ff6155a8d8d5cf","chain_tx_hash":"0x505569141ed7a5a60baaac8f740eaa546ffd55cbac6dd980b55ccc3c0a6fcaa6","chain_block":41555177}