{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:QLRUHJ3CJN6U5ZBP3EVOUSZBLL","short_pith_number":"pith:QLRUHJ3C","schema_version":"1.0","canonical_sha256":"82e343a7624b7d4ee42fd92aea4b215ac68a28233c4b475793961dff7c86a5bc","source":{"kind":"arxiv","id":"1811.02381","version":3},"attestation_state":"computed","paper":{"title":"Steve: A hierarchical Bayesian model for Supernova Cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. A. Plazas, A. Carnero Rosell, A. G. Kim, A. M\\\"oller, B. Flaugher, C. B. D'Andrea, C. Davis, C. E. Cunha, C. Lidman, D. Brooks, D. Brout, D. L. Burke, D. L. DePoy, D. L. Hollowood, D. Scolnic, D. Thomas, D. W. Gerdes, E. Bertin, E. Gaztanaga, E. Krause, E. Macaulay, E. Morganson, E. Sanchez, E. Suchyta, F. Menanteau, F. Sobreira, G. Gutierrez, G. Tarle, I. Sevilla-Noarbe, J. Annis, J. Carretero, J. De Vicente, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. Lasker, J. L. Marshall, K. Honscheid, K. Kuehn, L. N. da Costa, M. A. G. Maia, M. Carrasco Kind, M. Childress, M. Lima, M. March, M. Sako, M. Schubnell, M. Smith, M. Soares-Santos, N. Kuropatkin, O. Lahav, P. Doel, P. Fosalba, R. A. Gruendl, R. C. Wolf, R. Kessler, R. L. C. Ogando, R. Miquel, R. Schindler, S. Allam, S. Avila, S. R. Hinton, S. Serrano, T. F. Eifler, T. M. Davis, V. Scarpine, V. Vikram, W. G. Hartley, Y. Zhang (DES Collaboration)","submitted_at":"2018-11-06T14:42:56Z","abstract_excerpt":"We present a new Bayesian hierarchical model (BHM) named Steve for performing type Ia supernova (SNIa) cosmology fits. This advances previous works by including an improved treatment of Malmquist bias, accounting for additional sources of systematic uncertainty, and increasing numerical efficiency. Given light curve fit parameters, redshifts, and host-galaxy masses, we fit Steve simultaneously for parameters describing cosmology, SNIa populations, and systematic uncertainties. Selection effects are characterised using Monte-Carlo simulations. We demonstrate its implementation by fitting realis"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1811.02381","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-11-06T14:42:56Z","cross_cats_sorted":[],"title_canon_sha256":"8c8a3439a131f0043d9eb5c2d1c2513b1afb195710b42f0617644634fc19dc1f","abstract_canon_sha256":"58cfad075ca9fb027b2a7c4e3ff9fe0ba3a835346413a4265a7ffcfe801fc8e4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:15.854852Z","signature_b64":"1Zm22xzFYgDP29qa0DlNbFb66nHjv49e7SAHNEp9+phyuSwRazBcrPOyUjWM5Knomaa/mXAulW6wQdO6mWH3AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82e343a7624b7d4ee42fd92aea4b215ac68a28233c4b475793961dff7c86a5bc","last_reissued_at":"2026-05-17T23:47:15.854403Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:15.854403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Steve: A hierarchical Bayesian model for Supernova Cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. A. Plazas, A. Carnero Rosell, A. G. Kim, A. M\\\"oller, B. Flaugher, C. B. D'Andrea, C. Davis, C. E. Cunha, C. Lidman, D. Brooks, D. Brout, D. L. Burke, D. L. DePoy, D. L. Hollowood, D. Scolnic, D. Thomas, D. W. Gerdes, E. Bertin, E. Gaztanaga, E. Krause, E. Macaulay, E. Morganson, E. Sanchez, E. Suchyta, F. Menanteau, F. Sobreira, G. Gutierrez, G. Tarle, I. Sevilla-Noarbe, J. Annis, J. Carretero, J. De Vicente, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. Lasker, J. L. Marshall, K. Honscheid, K. Kuehn, L. N. da Costa, M. A. G. Maia, M. Carrasco Kind, M. Childress, M. Lima, M. March, M. Sako, M. Schubnell, M. Smith, M. Soares-Santos, N. Kuropatkin, O. Lahav, P. Doel, P. Fosalba, R. A. Gruendl, R. C. Wolf, R. Kessler, R. L. C. Ogando, R. Miquel, R. Schindler, S. Allam, S. Avila, S. R. Hinton, S. Serrano, T. F. Eifler, T. M. Davis, V. Scarpine, V. Vikram, W. G. Hartley, Y. Zhang (DES Collaboration)","submitted_at":"2018-11-06T14:42:56Z","abstract_excerpt":"We present a new Bayesian hierarchical model (BHM) named Steve for performing type Ia supernova (SNIa) cosmology fits. This advances previous works by including an improved treatment of Malmquist bias, accounting for additional sources of systematic uncertainty, and increasing numerical efficiency. Given light curve fit parameters, redshifts, and host-galaxy masses, we fit Steve simultaneously for parameters describing cosmology, SNIa populations, and systematic uncertainties. Selection effects are characterised using Monte-Carlo simulations. We demonstrate its implementation by fitting realis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02381","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1811.02381","created_at":"2026-05-17T23:47:15.854486+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.02381v3","created_at":"2026-05-17T23:47:15.854486+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02381","created_at":"2026-05-17T23:47:15.854486+00:00"},{"alias_kind":"pith_short_12","alias_value":"QLRUHJ3CJN6U","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"QLRUHJ3CJN6U5ZBP","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"QLRUHJ3C","created_at":"2026-05-18T12:32:46.962924+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.15078","citing_title":"KiDS+VIKING-450 cosmology with Bayesian hierarchical model redshift distributions","ref_index":42,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL","json":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL.json","graph_json":"https://pith.science/api/pith-number/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/graph.json","events_json":"https://pith.science/api/pith-number/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/events.json","paper":"https://pith.science/paper/QLRUHJ3C"},"agent_actions":{"view_html":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL","download_json":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL.json","view_paper":"https://pith.science/paper/QLRUHJ3C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.02381&json=true","fetch_graph":"https://pith.science/api/pith-number/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/graph.json","fetch_events":"https://pith.science/api/pith-number/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/action/storage_attestation","attest_author":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/action/author_attestation","sign_citation":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/action/citation_signature","submit_replication":"https://pith.science/pith/QLRUHJ3CJN6U5ZBP3EVOUSZBLL/action/replication_record"}},"created_at":"2026-05-17T23:47:15.854486+00:00","updated_at":"2026-05-17T23:47:15.854486+00:00"}