{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:HINOFMOZ3XJKKHHDLCZ7ODNUT3","short_pith_number":"pith:HINOFMOZ","schema_version":"1.0","canonical_sha256":"3a1ae2b1d9ddd2a51ce358b3f70db49ec0a9b4df0b58db19eac3db68adbdb493","source":{"kind":"arxiv","id":"2001.07021","version":1},"attestation_state":"computed","paper":{"title":"The viable f(G) gravity models via reconstruction from the observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Gansukh Tumurtushaa, Seokcheon Lee","submitted_at":"2020-01-20T08:47:28Z","abstract_excerpt":"We reconstruct the viable f(G) gravity models from the observations and provide the analytic solutions that well describe our numerical results. In order to avoid unphysical challenges that occur during the numerical reconstruction, we generalize f(G) models into f(GA), which is the simple extension of f(G) models with the introduction of a constant A parameter. We employ several observational data together with the stability condition, which reads d2f/dG2 > 0 and must be satisfied in the late-time evolution of the universe, to give proper initial conditions for solving the perturbation equati"},"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":"2001.07021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-01-20T08:47:28Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"3dbada7c843f4ec39a108f01a30b150f9ba85274c5395d9c3c95aaf196543335","abstract_canon_sha256":"31250a67a01a704a7a7ebe8d2f465347f7b56cc1dedbc9007e7c62792cef0349"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:10:32.326723Z","signature_b64":"mI30xUSjgREz1PTXTTZpL4UxBRNw041XMOSFvKSLFHJ7Oppbn8g/wxNiD3lIIzusKCERx5qEwMTbvt1/aZ0iAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a1ae2b1d9ddd2a51ce358b3f70db49ec0a9b4df0b58db19eac3db68adbdb493","last_reissued_at":"2026-07-05T01:10:32.326225Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:10:32.326225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The viable f(G) gravity models via reconstruction from the observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Gansukh Tumurtushaa, Seokcheon Lee","submitted_at":"2020-01-20T08:47:28Z","abstract_excerpt":"We reconstruct the viable f(G) gravity models from the observations and provide the analytic solutions that well describe our numerical results. In order to avoid unphysical challenges that occur during the numerical reconstruction, we generalize f(G) models into f(GA), which is the simple extension of f(G) models with the introduction of a constant A parameter. We employ several observational data together with the stability condition, which reads d2f/dG2 > 0 and must be satisfied in the late-time evolution of the universe, to give proper initial conditions for solving the perturbation equati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.07021","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.07021/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2001.07021","created_at":"2026-07-05T01:10:32.326287+00:00"},{"alias_kind":"arxiv_version","alias_value":"2001.07021v1","created_at":"2026-07-05T01:10:32.326287+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.07021","created_at":"2026-07-05T01:10:32.326287+00:00"},{"alias_kind":"pith_short_12","alias_value":"HINOFMOZ3XJK","created_at":"2026-07-05T01:10:32.326287+00:00"},{"alias_kind":"pith_short_16","alias_value":"HINOFMOZ3XJKKHHD","created_at":"2026-07-05T01:10:32.326287+00:00"},{"alias_kind":"pith_short_8","alias_value":"HINOFMOZ","created_at":"2026-07-05T01:10:32.326287+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2501.16628","citing_title":"The Regular Ricci-Inverse Cosmology with Multiple Anticurvature Scalars","ref_index":15,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3","json":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3.json","graph_json":"https://pith.science/api/pith-number/HINOFMOZ3XJKKHHDLCZ7ODNUT3/graph.json","events_json":"https://pith.science/api/pith-number/HINOFMOZ3XJKKHHDLCZ7ODNUT3/events.json","paper":"https://pith.science/paper/HINOFMOZ"},"agent_actions":{"view_html":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3","download_json":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3.json","view_paper":"https://pith.science/paper/HINOFMOZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2001.07021&json=true","fetch_graph":"https://pith.science/api/pith-number/HINOFMOZ3XJKKHHDLCZ7ODNUT3/graph.json","fetch_events":"https://pith.science/api/pith-number/HINOFMOZ3XJKKHHDLCZ7ODNUT3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3/action/storage_attestation","attest_author":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3/action/author_attestation","sign_citation":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3/action/citation_signature","submit_replication":"https://pith.science/pith/HINOFMOZ3XJKKHHDLCZ7ODNUT3/action/replication_record"}},"created_at":"2026-07-05T01:10:32.326287+00:00","updated_at":"2026-07-05T01:10:32.326287+00:00"}