{"artifact_id":"L2-931","layer":"L2","parent_l1":"L1-931","title":"Tooltip Trajectory Twin","omega":{"dims":{"tip_species":"H-abstraction|dimer|silicon","temperature_K":[4,300],"approach_speed":[0.1,10.0]},"type":"range"},"epsilon":{"type":"fn","expression":"≤ 0.1 Å placement error; correct-site yield ≥ 0.9; no tip crash"},"difficulty_score":0.9,"delta_tier":50,"fingerprint":"d9533cbb2a37f1551cbdd429b428b46c2872ebb3b10d73c357d43a1bc8a186d2","status":"testnet","submitted_by":"grand_challenge_genesis","chain_hash":null,"chain_tx_hash":null,"chain_block":null}