{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:6HEZUQZG33NUFLIEXW3U7HJBTO","short_pith_number":"pith:6HEZUQZG","schema_version":"1.0","canonical_sha256":"f1c99a4326dedb42ad04bdb74f9d219bb9eeaa3acab937e964a90bedb5dc3cdc","source":{"kind":"arxiv","id":"1511.07066","version":2},"attestation_state":"computed","paper":{"title":"Nonparametric reconstruction of the Om diagnostic to test LCDM","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Celia Escamilla-Rivera, Julio C. Fabris","submitted_at":"2015-11-22T20:40:05Z","abstract_excerpt":"Cosmic acceleration is usually related with the unknown dark energy, which equation of state, w(z), is constrained and numerically confronted with independent astrophysical data. In order to make a diagnostic of w(z), the introduction of a null test of dark energy can be done using a diagnostic function of redshift, Om. In this work we present a nonparametric reconstruction of this diagnostic using the so-called Loess-Simex factory to test the concordance model with the advantage that this approach offers an alternative way to relax the use of priors and find a possible 'w' that reliably descr"},"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":"1511.07066","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-11-22T20:40:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b74655b310974d60a9456577be0fd7e9503188cf14f992ced6b49f11a0c3d047","abstract_canon_sha256":"07a4887cbf4b567b7ce0268c002380cccb3aaefd1b6d2943b965e16c60db4d59"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:14.346838Z","signature_b64":"DtcprGSCeGDMb7TqY2erW/Rn1c5Sm7FxNDV7mgYS8ZmWQmTUxttU6hiQOZoPLMlZPzO0iNdpuJYoacmZYA8SBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f1c99a4326dedb42ad04bdb74f9d219bb9eeaa3acab937e964a90bedb5dc3cdc","last_reissued_at":"2026-05-18T00:55:14.346389Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:14.346389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nonparametric reconstruction of the Om diagnostic to test LCDM","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Celia Escamilla-Rivera, Julio C. Fabris","submitted_at":"2015-11-22T20:40:05Z","abstract_excerpt":"Cosmic acceleration is usually related with the unknown dark energy, which equation of state, w(z), is constrained and numerically confronted with independent astrophysical data. In order to make a diagnostic of w(z), the introduction of a null test of dark energy can be done using a diagnostic function of redshift, Om. In this work we present a nonparametric reconstruction of this diagnostic using the so-called Loess-Simex factory to test the concordance model with the advantage that this approach offers an alternative way to relax the use of priors and find a possible 'w' that reliably descr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07066","kind":"arxiv","version":2},"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":"1511.07066","created_at":"2026-05-18T00:55:14.346460+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.07066v2","created_at":"2026-05-18T00:55:14.346460+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07066","created_at":"2026-05-18T00:55:14.346460+00:00"},{"alias_kind":"pith_short_12","alias_value":"6HEZUQZG33NU","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"6HEZUQZG33NUFLIE","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"6HEZUQZG","created_at":"2026-05-18T12:29:07.941421+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO","json":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO.json","graph_json":"https://pith.science/api/pith-number/6HEZUQZG33NUFLIEXW3U7HJBTO/graph.json","events_json":"https://pith.science/api/pith-number/6HEZUQZG33NUFLIEXW3U7HJBTO/events.json","paper":"https://pith.science/paper/6HEZUQZG"},"agent_actions":{"view_html":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO","download_json":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO.json","view_paper":"https://pith.science/paper/6HEZUQZG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.07066&json=true","fetch_graph":"https://pith.science/api/pith-number/6HEZUQZG33NUFLIEXW3U7HJBTO/graph.json","fetch_events":"https://pith.science/api/pith-number/6HEZUQZG33NUFLIEXW3U7HJBTO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO/action/storage_attestation","attest_author":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO/action/author_attestation","sign_citation":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO/action/citation_signature","submit_replication":"https://pith.science/pith/6HEZUQZG33NUFLIEXW3U7HJBTO/action/replication_record"}},"created_at":"2026-05-18T00:55:14.346460+00:00","updated_at":"2026-05-18T00:55:14.346460+00:00"}