{"id":"W2073562922","doi":"10.1038/nature12426","title":"Atmospheric oxygenation three billion years ago","year":2013,"lang":"en","type":"article","venue":"Nature","topic":"Geochemistry and Elemental Analysis","field":"Earth and Planetary Sciences","cited_by":641,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of British Columbia","funders":"","keywords":"Billion years; Oxygenation; Astrobiology; Environmental science; Astronomy; Physics; Medicine; Internal medicine","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":["insufficient_payload"],"category_scores_codex":[0.00004899647,0.00005751326,0.00005580961,0.000006275779,0.0000556624,0.00003803914,0.0001043573,0.0002640571,0.0157878],"category_scores_gemma":[0.00001151002,0.00004403151,0.00004048033,0.0002355815,0.00001417839,0.0001451197,0.000004982802,0.0003580067,0.001253533],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000002511369,"about_ca_system_score_gemma":0.000006426928,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00107182,"about_ca_topic_score_gemma":0.0009123345,"domain_scores_codex":[0.9995134,0.000007716993,0.00006767775,0.0001253775,0.0001611738,0.0001246329],"domain_scores_gemma":[0.9997929,0.00001175508,0.00002816687,0.00009020167,0.00002614939,0.00005087833],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000006793361,0.0000161435,0.7111551,0.00001306474,0.00003800187,0.000006453231,0.00005820547,0.001177727,0.001182079,0.00002350357,0.02191976,0.2644032],"study_design_scores_gemma":[0.00007069582,0.00001572352,0.9799033,0.000003107627,0.000009110497,0.000002637453,0.00004929462,0.008116204,0.0003287201,0.001594738,0.009825132,0.00008129013],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9903684,0.0006454599,0.00001554743,0.000677913,0.0001196664,0.00005805522,0.000009265148,0.00002593819,0.008079739],"genre_scores_gemma":[0.9977784,0.00001830783,0.0006532031,0.0004571642,0.00009016065,7.884937e-7,0.0001881158,0.000001097074,0.0008127773],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2687483,"threshold_uncertainty_score":0.9995241,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003755212980384957,"score_gpt":0.1775249878185611,"score_spread":0.1737697748381762,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}