{"artifact_id":"L2-379-001","layer":"L2","parent_l1":"L1-379","title":"Baryon Acoustic Oscillation (BAO) Fitting — Nominal + Mismatch Specs","omega":{"dims":{"z_eff":[0.1,2.0],"N_gal_million":[0.1,50.0],"sigma_v_FoG_kms":[100,1000],"survey_volume_Gpc3_h":[0.5,50.0]},"type":"range"},"epsilon":{"type":"fn","expression":"0.5 + 0.5 * (1.0 / N_gal_million) ** 0.5"},"difficulty_score":0.35,"delta_tier":5,"fingerprint":"56af2191027c49c7f27a334079abc0dddee3cdcb2f1a56fe2aa10525e4b0c9e4","status":"testnet","submitted_by":"mainnet_mirror","chain_hash":"0x558d737db2ee60a11650696b59f1e535c607150a9b60790419fc91cc6339b166","chain_tx_hash":"0x3aa8236f18765ae4b910f5f566f8e73b38dbb791f43b52aa896a91d2e31fb5e1","chain_block":41555182}