{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:OD5ARXR4RGTCI5TCMDY3G77GFE","short_pith_number":"pith:OD5ARXR4","schema_version":"1.0","canonical_sha256":"70fa08de3c89a624766260f1b37fe6293240e276dc4a5d9679ba2e3c90e4e7f3","source":{"kind":"arxiv","id":"1907.05209","version":2},"attestation_state":"computed","paper":{"title":"Buchdahl model in f(R, T) gravity: A comparative study with standard Einstein's gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Ayan Banerjee, Francisco Tello-Ortiz, S. K. Maurya","submitted_at":"2019-06-28T13:32:19Z","abstract_excerpt":"This paper is devoted in the study of the hydrostatic equilibrium of stellar structure in the framework of modified $f(R, T)$ gravity theory that allows the non-conservation of energy-momentum, with possible implications for several cosmological and astrophysical issues such as the late-time cosmic acceleration of the universe without appealing to exotic matter fields. For this purpose, we consider the gravitational Lagrangian by taking an arbitrary function of the Ricci scalar and the trace of the stress-energy tensor. We obtain a generic form for the gravitational field equations and derive "},"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":"1907.05209","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-06-28T13:32:19Z","cross_cats_sorted":[],"title_canon_sha256":"cd7ceeda2057e89005c009996f31a01788f1e15ce8ffc8b12f4c1241ad8fe1ae","abstract_canon_sha256":"edbf93faf2b387a49f7b10f86a025f5603b879314bb350c74084e17b79c759e4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:27:44.254628Z","signature_b64":"e1BBYKNe3lAPZ32k3P/YQT5UGgMIDkJ3jKBWrqGhT80MZvEY3ROt2vhJ8PDTHRGiwl5Rj2NZBTTz6L0L+6XxCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70fa08de3c89a624766260f1b37fe6293240e276dc4a5d9679ba2e3c90e4e7f3","last_reissued_at":"2026-07-05T00:27:44.254158Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:27:44.254158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Buchdahl model in f(R, T) gravity: A comparative study with standard Einstein's gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Ayan Banerjee, Francisco Tello-Ortiz, S. K. Maurya","submitted_at":"2019-06-28T13:32:19Z","abstract_excerpt":"This paper is devoted in the study of the hydrostatic equilibrium of stellar structure in the framework of modified $f(R, T)$ gravity theory that allows the non-conservation of energy-momentum, with possible implications for several cosmological and astrophysical issues such as the late-time cosmic acceleration of the universe without appealing to exotic matter fields. For this purpose, we consider the gravitational Lagrangian by taking an arbitrary function of the Ricci scalar and the trace of the stress-energy tensor. We obtain a generic form for the gravitational field equations and derive "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05209","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.05209/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":"1907.05209","created_at":"2026-07-05T00:27:44.254215+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.05209v2","created_at":"2026-07-05T00:27:44.254215+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05209","created_at":"2026-07-05T00:27:44.254215+00:00"},{"alias_kind":"pith_short_12","alias_value":"OD5ARXR4RGTC","created_at":"2026-07-05T00:27:44.254215+00:00"},{"alias_kind":"pith_short_16","alias_value":"OD5ARXR4RGTCI5TC","created_at":"2026-07-05T00:27:44.254215+00:00"},{"alias_kind":"pith_short_8","alias_value":"OD5ARXR4","created_at":"2026-07-05T00:27:44.254215+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/OD5ARXR4RGTCI5TCMDY3G77GFE","json":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE.json","graph_json":"https://pith.science/api/pith-number/OD5ARXR4RGTCI5TCMDY3G77GFE/graph.json","events_json":"https://pith.science/api/pith-number/OD5ARXR4RGTCI5TCMDY3G77GFE/events.json","paper":"https://pith.science/paper/OD5ARXR4"},"agent_actions":{"view_html":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE","download_json":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE.json","view_paper":"https://pith.science/paper/OD5ARXR4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.05209&json=true","fetch_graph":"https://pith.science/api/pith-number/OD5ARXR4RGTCI5TCMDY3G77GFE/graph.json","fetch_events":"https://pith.science/api/pith-number/OD5ARXR4RGTCI5TCMDY3G77GFE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE/action/storage_attestation","attest_author":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE/action/author_attestation","sign_citation":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE/action/citation_signature","submit_replication":"https://pith.science/pith/OD5ARXR4RGTCI5TCMDY3G77GFE/action/replication_record"}},"created_at":"2026-07-05T00:27:44.254215+00:00","updated_at":"2026-07-05T00:27:44.254215+00:00"}