{"id":"W2939024351","doi":"10.3847/2041-8213/ab0c96","title":"First M87 Event Horizon Telescope Results. II. 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Ministero dello Sviluppo Economico; Max-Planck-Gesellschaft; Centre National de la Recherche Scientifique; National Research Foundation of Korea; Universidad Nacional Autónoma de México; Generalitat Valenciana; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Instituto de Astrofísica de Andalucía; Chinese Academy of Sciences; Academia Sinica; Toray Science Foundation; National Research Foundation; Strong; Harvard University; Innovation, Science and Economic Development Canada; National Astronomical Observatory of Japan; Associated Universities; Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México; Consejo Nacional de Ciencia y Tecnología; University of Chicago; Vetenskapsrådet; International Max Planck Research School for Environmental, Cellular and Molecular Microbiology; Smithsonian Institution; U.S. Department of Energy; Leverhulme Trust; European Commission; National Radio Astronomy Observatory; University of Arizona; Massachusetts Institute of Technology; National Institutes of Natural Sciences; Government of Canada; National Aeronautics and Space Administration; Istituto Nazionale di Fisica Nucleare; Department of Science and Technology, Ministry of Science and Technology, India; Russian Science Foundation; Ministerio de Ciencia, Innovación y Universidades; Gordon and Betty Moore Foundation; Compute Canada; National Science Foundation","keywords":"Very-long-baseline interferometry; Physics; Event horizon; Telescope; Hydrogen maser; Supermassive black hole; Millimeter; Instrumentation (computer programming); Angular resolution (graph drawing); Maser; Event (particle physics); Astronomy; Remote sensing; Astrophysics; Computer science; Geology; Galaxy","routes":{"ca_aff":true,"ca_fund":true,"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":[],"consensus_categories":[],"category_scores_codex":[0.0001127105,0.0002101202,0.0002269453,0.00003640127,0.0005831874,0.0001413067,0.0002658304,0.00001783752,0.00010797],"category_scores_gemma":[0.000004446814,0.0001418335,0.0001527754,0.0001617141,0.0001163475,0.0003503818,0.00009388068,0.0005011468,0.0001440646],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004816142,"about_ca_system_score_gemma":0.0000248688,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00003799814,"about_ca_topic_score_gemma":5.123615e-7,"domain_scores_codex":[0.9986964,0.0000740129,0.0003377076,0.0002384416,0.0003071252,0.0003463178],"domain_scores_gemma":[0.9992256,0.00009107702,0.0002352012,0.0002600971,0.00004346193,0.0001445757],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.0004257643,0.0005260616,0.004985985,0.00001647561,0.000393877,0.000004904874,0.001853987,0.0255177,0.865585,0.03569898,0.004183772,0.06080747],"study_design_scores_gemma":[0.02124038,0.008154925,0.822092,0.0007804084,0.0008786082,0.00002708636,0.006467992,0.0103931,0.02102206,0.02165955,0.08374449,0.003539395],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9687073,0.000005702029,0.01968864,0.01062727,0.00024706,0.0002080857,0.00002486101,0.00001614158,0.0004749674],"genre_scores_gemma":[0.9959724,0.000002270632,0.002062597,0.0004331933,0.001233269,0.000009915929,0.00002085745,0.000022368,0.0002431372],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8445629,"threshold_uncertainty_score":0.5783803,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007352882862905335,"score_gpt":0.2133402530208863,"score_spread":0.205987370157981,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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