{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:XQMN66WLORUBF276CW3BNPFKOQ","short_pith_number":"pith:XQMN66WL","schema_version":"1.0","canonical_sha256":"bc18df7acb746812ebfe15b616bcaa74181549d4cad1275c7f67d8cac91265ce","source":{"kind":"arxiv","id":"2302.07022","version":4},"attestation_state":"computed","paper":{"title":"Late-time cosmology in a model of modified gravity with an exponential function of the curvature","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"A. Oliveros, Mario A. Acero","submitted_at":"2023-02-14T13:05:16Z","abstract_excerpt":"In this work, we analyse the late-time evolution of the universe for a particular $f(R)$ gravity model built from an exponential function of the scalar curvature. Following the literature, we write the field equations in terms of a suited statefinder function ($y_H(z)$) and considering well motivated physical initial conditions, the resulting equations are solved numerically. Also, the cosmological parameters $w_{\\rm{DE}}$, $w_{\\rm{eff}}$, $\\Omega_{\\rm{DE}}$ and $H(z)$ and the statefinder quantities $q$, $j$, $s$ and $Om(z)$ are explicitly expressed in terms of $y_H(z)$ and its derivatives. Fu"},"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":"2302.07022","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-02-14T13:05:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"7dfc6c591400812a4410bd96eb70575e73d244bd1a4c3e31a1a92dc3dc35c03d","abstract_canon_sha256":"9e500aeed78684936554b430b2ddde0250f2dfbb79e7c0c837c60cd139c440cc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:01:39.347083Z","signature_b64":"/toaiByvLhhuBbXEyuP0Yc6OTwIPtnRrynkoI5OTmDht+Zi2XC3t2d5DcXPjin97BBEe8tobpMfsBFOi/UfDCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc18df7acb746812ebfe15b616bcaa74181549d4cad1275c7f67d8cac91265ce","last_reissued_at":"2026-07-05T07:01:39.346579Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:01:39.346579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Late-time cosmology in a model of modified gravity with an exponential function of the curvature","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"A. Oliveros, Mario A. Acero","submitted_at":"2023-02-14T13:05:16Z","abstract_excerpt":"In this work, we analyse the late-time evolution of the universe for a particular $f(R)$ gravity model built from an exponential function of the scalar curvature. Following the literature, we write the field equations in terms of a suited statefinder function ($y_H(z)$) and considering well motivated physical initial conditions, the resulting equations are solved numerically. Also, the cosmological parameters $w_{\\rm{DE}}$, $w_{\\rm{eff}}$, $\\Omega_{\\rm{DE}}$ and $H(z)$ and the statefinder quantities $q$, $j$, $s$ and $Om(z)$ are explicitly expressed in terms of $y_H(z)$ and its derivatives. Fu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.07022","kind":"arxiv","version":4},"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/2302.07022/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":"2302.07022","created_at":"2026-07-05T07:01:39.346641+00:00"},{"alias_kind":"arxiv_version","alias_value":"2302.07022v4","created_at":"2026-07-05T07:01:39.346641+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.07022","created_at":"2026-07-05T07:01:39.346641+00:00"},{"alias_kind":"pith_short_12","alias_value":"XQMN66WLORUB","created_at":"2026-07-05T07:01:39.346641+00:00"},{"alias_kind":"pith_short_16","alias_value":"XQMN66WLORUBF276","created_at":"2026-07-05T07:01:39.346641+00:00"},{"alias_kind":"pith_short_8","alias_value":"XQMN66WL","created_at":"2026-07-05T07:01:39.346641+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/XQMN66WLORUBF276CW3BNPFKOQ","json":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ.json","graph_json":"https://pith.science/api/pith-number/XQMN66WLORUBF276CW3BNPFKOQ/graph.json","events_json":"https://pith.science/api/pith-number/XQMN66WLORUBF276CW3BNPFKOQ/events.json","paper":"https://pith.science/paper/XQMN66WL"},"agent_actions":{"view_html":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ","download_json":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ.json","view_paper":"https://pith.science/paper/XQMN66WL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2302.07022&json=true","fetch_graph":"https://pith.science/api/pith-number/XQMN66WLORUBF276CW3BNPFKOQ/graph.json","fetch_events":"https://pith.science/api/pith-number/XQMN66WLORUBF276CW3BNPFKOQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ/action/storage_attestation","attest_author":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ/action/author_attestation","sign_citation":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ/action/citation_signature","submit_replication":"https://pith.science/pith/XQMN66WLORUBF276CW3BNPFKOQ/action/replication_record"}},"created_at":"2026-07-05T07:01:39.346641+00:00","updated_at":"2026-07-05T07:01:39.346641+00:00"}