{"artifact_id":"L1-472","layer":"L1","title":"Hyperspectral Spectral Unmixing","domain":"Geodesy","sub_domain":"Remote sensing spectroscopy","physics_fingerprint":{"L_DAG":2.8,"title":"Hyperspectral Spectral Unmixing","domain":"Geodesy","carrier":"photon","primitives":["L.linear_op","O.nonneg_ls.fcls","S.endmember.extraction"],"sub_domain":"Remote sensing spectroscopy","noise_model":"gaussian","problem_class":"linear_inverse","solution_space":"abundance_map","difficulty_delta":3,"integration_axis":"spectral","sensing_mechanism":"hyperspectral_reflectance_unmixing"},"observable_profile":{"metric":"abundance_RMSE","regime":"Existence of the recovered abundance_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 ~= 50); endmember_variability dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Gaussian sets the irreducible data-fidelity floor.","secondary":"endmember_SAM_deg"},"size_tiers":{"center_spec":{"omega":{"H":100,"W":100,"SNR_dB":30,"K_endmembers":5},"input_format":"measurement_only","problem_class":"linear_inverse","forward_operator":"hyperspectral_reflectance_unmixing","epsilon_fn_center":"0.05 abundance_RMSE"},"omega_bounds":{"H":[20,500],"W":[20,500],"SNR_dB":[10,60],"K_endmembers":[2,20]},"epsilon_bounds":{"abundance_RMSE":[0.01,0.2]},"allowed_problem_classes":["linear_inverse"],"allowed_omega_dimensions":["H","W","K_endmembers","SNR_dB"],"allowed_forward_operators":["hyperspectral_reflectance_unmixing"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":1000.0,"metric":"abundance_RMSE"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xecf047403de0792a114aee70830d2d3023179f19ea9ed1d1f12c55d780fef091","chain_tx_hash":"0xf8363ef360ceda918f16cd61a16901ce95b84aaae4cc9fb2349880f29440510f","chain_block":41555299}