{"artifact_id":"L2-070-001","layer":"L2","parent_l1":"L1-070","title":"Ptychography Mismatch-Only Spec","omega":{"dims":{"H":[128,4096],"W":[128,4096],"J_scan":[50,10000],"probe_size":[32,512],"photon_count":[10,100000],"overlap_fraction":[0.3,0.85],"partial_coherence":[0.7,1.0],"probe_shape_drift":[0.0,0.2],"background_scatter":[0.0,0.1],"probe_position_error":[0.0,2.0]},"type":"range"},"epsilon":{"type":"fn","expression":"24.0 + 3.0 * log2(J_scan / 50) + 2.0 * log10(photon_count / 10) - 15.0 * max(0, 0.5 - overlap_fraction)"},"difficulty_score":0.58,"delta_tier":5,"fingerprint":"96f5058a7c3afd52966bf6f56cf79a89d7d922f6072946cf7c36932ed883ec9c","status":"testnet","submitted_by":"mainnet_mirror","chain_hash":"0xb252b961733ebe2a667ea9532fc57ac267dc842326c8709f89ee326d640531dc","chain_tx_hash":"0x3055ab5abb7bc520af951dddd4f3321e050dfb797b6a7383f8ecb97bb7598958","chain_block":41554172}