{"artifact_id":"L2-251-001","layer":"L2","parent_l1":"L1-251","title":"Magnetostatics — coil design and field inversion Mismatch-Only Spec","omega":{"dims":{"H":[32,1024],"W":[32,1024],"Z":[8,512],"SNR_dB":[0,40],"N_probes":[4,4096],"mu_r_error":[0.0,0.1],"current_error":[0.0,0.02],"coil_pos_error":[0.0,0.05]},"type":"range"},"epsilon":{"type":"fn","expression":"20.0 + 0.3*SNR_dB - 20.0*coil_pos_error - 15.0*mu_r_error - 50.0*current_error"},"difficulty_score":0.48,"delta_tier":5,"fingerprint":"96ca5c61518967403352596bd69a9178501eaddaeafdfb3b4068ca6acefad1f4","status":"testnet","submitted_by":"mainnet_mirror","chain_hash":"0xda5595fa598cca552fbe64cd7f242d3dbef6e6b8173064c98601d1ed397de6ce","chain_tx_hash":"0xf0635e8cefd2a466cf61c98d0dbaa77905199c9417b29ee7a9d394fd1261f2ca","chain_block":41554002}