{"artifact_id":"L1-407","layer":"L1","title":"Lotka-Volterra Predator-Prey Dynamics","domain":"Computational Biology","sub_domain":"Population dynamics","physics_fingerprint":{"L_DAG":2.5,"title":"Lotka-Volterra Predator-Prey Dynamics","domain":"Computational Biology","carrier":"N/A","primitives":["D.time","O.nls.population_fit","S.continuation.bifurcation_LV"],"sub_domain":"Population dynamics","noise_model":"lognormal","problem_class":"parameter_estimation","solution_space":"LV_parameter_vector","difficulty_delta":3,"integration_axis":"time","sensing_mechanism":"population_census_survey"},"observable_profile":{"metric":"population_trajectory_RMSE_log","regime":"Existence of the recovered LV_parameter_vector is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 20); stochastic_demographic_noise dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Lognormal sets the irreducible data-fidelity floor.","secondary":"period_amplitude_error"},"size_tiers":{"center_spec":{"omega":{"period_yr":5,"N_observations":50,"amplitude_H_max":1000,"observation_noise_log_sigma":0.1},"input_format":"measurement_only","problem_class":"parameter_estimation","forward_operator":"population_census_survey","epsilon_fn_center":"0.10 population_trajectory_RMSE_log"},"omega_bounds":{"period_yr":[0.5,50],"N_observations":[10,300],"amplitude_H_max":[10,100000],"observation_noise_log_sigma":[0.01,1.0]},"epsilon_bounds":{"population_trajectory_RMSE_log":[0.01,0.5]},"allowed_problem_classes":["parameter_estimation"],"allowed_omega_dimensions":["N_observations","amplitude_H_max","period_yr","observation_noise_log_sigma"],"allowed_forward_operators":["population_census_survey"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":500,"metric":"population_trajectory_RMSE_log"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x2ddd2c04866e2278ad4c71739cb7b04448bd5d90fd7d2e384f238157a7bfd067","chain_tx_hash":"0xfa70a63fa21039d7210901a3a16e7df7bfa2d224f561aac8c85797e637a10da7","chain_block":41555218}