{"artifact_id":"L2-043-001","layer":"L2","parent_l1":"L1-043","title":"Functional MRI (BOLD) Mismatch-Only Spec","omega":{"dims":{"H":32,"W":32,"Z":[16,100],"TR_s":[0.5,5.0],"TE_ms":[15,80],"SNR_dB":[0.0,30.0],"motion":[0.0,0.5],"N_frames":[50,1000],"multi_echo_bias":[0.0,0.2],"acquisition_jitter":[0.0,0.1],"physiological_noise":[0.0,0.2],"susceptibility_artifact":[0.0,0.3]},"type":"range"},"epsilon":{"type":"fn","expression":"5.0 + 0.3 * SNR_dB - 15.0 * physiological_noise - 10.0 * motion - 8.0 * susceptibility_artifact"},"difficulty_score":0.5,"delta_tier":5,"fingerprint":"24c5f25c29ffa555ac287339abdb15c41a26ad5d1031aa6b5dac60e81d05121f","status":"testnet","submitted_by":"mainnet_mirror","chain_hash":"0x006b2a9543ee141bed365f34034aa67438a715b59dad8ffeb5a4e57189503765","chain_tx_hash":"0x4f0e90dc08661d2845d3698abcfc7c3c86a3f7bcb879d53d082822c62cd72279","chain_block":41553375}