{"artifact_id":"L3-262-001-001-T1","layer":"L3","parent_l2":"L2-262-001","parent_l1":"L1-262","title":"T1_nominal","benchmark_type":"fixed","tier":"T1","manifest":{"rho":1,"tier":"T1_nominal","epsilon":3.0,"spec_id":"L2-262-001","d_ibench":0.14,"baselines":[{"Q":0.88,"name":"Bellhop-Gaussian","score":2.8,"metric":"TL_error_dB"},{"Q":0.88,"name":"Bellhop-eigenray","score":3.5,"metric":"TL_error_dB"},{"Q":0.88,"name":"Ray-NN","score":2.4,"metric":"TL_error_dB"}],"omega_tier":{"N_rays":10000,"SNR_dB":30.0,"N_depth":256,"N_range":512,"freq_Hz":1000,"ssp_error":0.0,"range_error":0.0,"bathymetry_error":0.0,"bottom_properties_error":0.0},"principle_id":"L1-262","dataset_description":null},"ipfs_cid":null,"benchmark_hash":"3a5c47bf77a9bef4df1d23c3aa051dca3ba65ec4a4709771c269913732fbb127","quality_tier":"standard","builder":"mainnet_mirror","royalty_bps":1500,"chain_hash":"0x9cc637dd203c3a2510a8889694dac02f56629e4f4e766e481a25f0a542aeff3d","chain_tx_hash":"0xa62bfb816b33b883cb732e16ecda49b608a9da792ced040f09fe61c0dd602a82","chain_block":41554055}