{"artifact_id":"L3-365-001-001-T1","layer":"L3","parent_l2":"L2-365-001","parent_l1":"L1-365","title":"T1_nominal","benchmark_type":"fixed","tier":"T1","manifest":{"rho":1,"tier":"T1_nominal","epsilon":1.02,"spec_id":"L2-365-001","d_ibench":0.15,"baselines":[{"Q":0.82,"name":"Gadget2_TreePM","score":1.05,"metric":"matter_power_spectrum_P_k_chi2"},{"Q":0.85,"name":"FastPM","score":1.08,"metric":"matter_power_spectrum_P_k_chi2"}],"omega_tier":{"Omega_m":0.3,"sigma_8":0.8,"N_particles":134217728,"box_size_Mpc_h":250.0,"baryonic_feedback_neglect":0.0,"neutrino_mass_uncertainty":0.0,"cosmological_parameter_uncertainty":0.0},"principle_id":"L1-365","dataset_description":"Standard Astrophysics conditions, clean data, calibrated model."},"ipfs_cid":null,"benchmark_hash":"9018fa2312a7e6ae7c48b5c7736ddca9618c13f1af392b43d8576beaae6333a1","quality_tier":"standard","builder":"mainnet_mirror","royalty_bps":1500,"chain_hash":"0x4098e536e5f06431754b606ab1e6eac632992637ba3a990284b95aa4595acc61","chain_tx_hash":"0x93c37fe478e3785b60ff7b0fdd99dc8602b560320dec3e6c8d00eef76ef1b042","chain_block":41555182}