{"artifact_id":"L1-369","layer":"L1","title":"Weak Gravitational Lensing Shear Estimation","domain":"Astrophysics","sub_domain":"Cosmic shear","physics_fingerprint":{"L_DAG":3.2,"title":"Weak Gravitational Lensing Shear Estimation","domain":"Astrophysics","carrier":"photon","primitives":["S.shear.ellipticity","F.fourier.e_mode","O.correlation.2pcf"],"sub_domain":"Cosmic shear","noise_model":"shape_noise_gaussian","problem_class":"statistical_inverse","solution_space":"2D_convergence_map","difficulty_delta":5,"integration_axis":"angular_correlation","sensing_mechanism":"ellipticity_shear_correlation"},"observable_profile":{"metric":"sigma_8_Omega_m_constraint_area","regime":"Existence of the recovered 2D_convergence_map 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); PSF_leakage dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Shape noise gaussian sets the irreducible data-fidelity floor.","secondary":"shear_calibration_bias"},"size_tiers":{"center_spec":{"omega":{"A_IA":0.5,"N_gal_million":100,"n_gal_arcmin2":10.0,"survey_area_deg2":1000},"input_format":"measurement_only","problem_class":"statistical_inverse","forward_operator":"ellipticity_shear_correlation","epsilon_fn_center":"0.015 sigma_8_Omega_m_constraint_area"},"omega_bounds":{"A_IA":[0.0,2.0],"N_gal_million":[1,3000],"n_gal_arcmin2":[5,100],"survey_area_deg2":[100,20000]},"epsilon_bounds":{"sigma_8_Omega_m_constraint_area":[0.005,0.05]},"allowed_problem_classes":["statistical_inverse"],"allowed_omega_dimensions":["N_gal_million","survey_area_deg2","n_gal_arcmin2","A_IA"],"allowed_forward_operators":["ellipticity_shear_correlation"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":500,"metric":"sigma_8_Omega_m_constraint_area"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xb4bd353c63a743d3c416c5bd2a76462fa120577f7286904cea366a45656bb6ba","chain_tx_hash":"0xd83926770fc864b456937b83229b4a6a91d455b0b2a6030037300f98f1570e83","chain_block":41555177}