{"artifact_id":"L2-902","layer":"L2","parent_l1":"L1-902","title":"Geroprotector Intervention Twin","omega":{"dims":{"dose":[0.0,1.0],"intervention":"rapamycin|senolytic|CR|none","start_age_frac":[0.3,0.8]},"type":"range"},"epsilon":{"type":"fn","expression":"≤ 5% error on predicted survival-curve shift; monotone dose safety"},"difficulty_score":0.9,"delta_tier":50,"fingerprint":"2f9eee1ab4ea0351f460a9abc3988b9380fa86974f64647d571cb5d0dbd64039","status":"testnet","submitted_by":"grand_challenge_genesis","chain_hash":null,"chain_tx_hash":null,"chain_block":null,"plain_intro":"Geroprotector Intervention Twin is a digital twin specification derived from principle L1-902. It defines the forward operator and a 3-dimensional parameter space Ω over which benchmarks are seeded. Each benchmark drawn from this twin is a concrete measurement instance with fixed Ω values; solvers must invert that specific measurement."}