{"artifact_id":"L3-381-001-001-T1","layer":"L3","parent_l2":"L2-381-001","parent_l1":"L1-381","title":"T1_nominal","benchmark_type":"fixed","tier":"T1","manifest":{"rho":1,"tier":"T1_nominal","epsilon":0.8,"spec_id":"L2-381-001","d_ibench":0.15,"baselines":[{"Q":0.9,"name":"SALT2_BEAMS","score":0.9,"metric":"H0_sigma_km_s_Mpc"},{"Q":0.75,"name":"BHM_UNITY","score":0.75,"metric":"H0_sigma_km_s_Mpc"}],"omega_tier":{"median_z":0.3,"Malmquist_bias":0.0,"peculiar_v_kms":200,"N_SN_hubble_flow":500,"photometric_noise_mmag":5.0,"peculiar_velocity_field_km_s":0.0,"host_galaxy_metallicity_gradient":0.0},"principle_id":"L1-381","dataset_description":"Standard Astrophysics conditions, clean data, calibrated model."},"ipfs_cid":null,"benchmark_hash":"b16913769eb3aa683a0dff3ba605e36548d0e7ef02b6f01c147e5e879daf31d0","quality_tier":"standard","builder":"mainnet_mirror","royalty_bps":1500,"chain_hash":"0x94d8aa2b72816e38355afbbc1219c3286c3a0ed9798708640bc3def696606a22","chain_tx_hash":"0x245ea4a6fe3caffa7e9770cc8be9acd9c9c4656a34d7682093b8ae0a8587442b","chain_block":41555203}