{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:NMJK5ENWGG5JD2QWIHRO345GZN","short_pith_number":"pith:NMJK5ENW","schema_version":"1.0","canonical_sha256":"6b12ae91b631ba91ea1641e2edf3a6cb483e09aa35243373259e3d88559b0870","source":{"kind":"arxiv","id":"2201.05209","version":2},"attestation_state":"computed","paper":{"title":"New interior model of neutron stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Camilo Posada, Jan Hlad\\'ik, Zden\\v{e}k Stuchl\\'ik","submitted_at":"2022-01-13T20:57:37Z","abstract_excerpt":"The Tolman VII solution is considered by some as one of the few analytical solutions to Einstein's equations, which describes approximately well the interior of neutron stars (NSs). This solution is characterized by the mass $M$, radius $R$, and an energy density that varies quadratically with the radial coordinate $r$. Recently, Jiang and Yagi proposed a modification of this solution, the so-called modified Tolman VII (MTVII) solution, by introducing an additional quartic term to the energy density radial profile. The MTVII solution is an approximate solution to Einstein's equation, which inc"},"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":"2201.05209","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-01-13T20:57:37Z","cross_cats_sorted":[],"title_canon_sha256":"865cb65dcace7d4d826626ed6ae52f642fd5c0dc8e5635458674d71086450846","abstract_canon_sha256":"3fe4823a3244a6e2846be04c7ab47c3ceef8c86e76e3caf4d75ebe3bbf55c820"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:22:53.612877Z","signature_b64":"y3eo/AQZieKDhTqQ1KAeiQktjfISAE9waQXeYN0FXRqXHppqPDhHnH0vxN6LDCTRb9if7M6PrMaP4sshRMi0DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b12ae91b631ba91ea1641e2edf3a6cb483e09aa35243373259e3d88559b0870","last_reissued_at":"2026-07-05T04:22:53.612322Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:22:53.612322Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New interior model of neutron stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Camilo Posada, Jan Hlad\\'ik, Zden\\v{e}k Stuchl\\'ik","submitted_at":"2022-01-13T20:57:37Z","abstract_excerpt":"The Tolman VII solution is considered by some as one of the few analytical solutions to Einstein's equations, which describes approximately well the interior of neutron stars (NSs). This solution is characterized by the mass $M$, radius $R$, and an energy density that varies quadratically with the radial coordinate $r$. Recently, Jiang and Yagi proposed a modification of this solution, the so-called modified Tolman VII (MTVII) solution, by introducing an additional quartic term to the energy density radial profile. The MTVII solution is an approximate solution to Einstein's equation, which inc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.05209","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/2201.05209/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":"2201.05209","created_at":"2026-07-05T04:22:53.612391+00:00"},{"alias_kind":"arxiv_version","alias_value":"2201.05209v2","created_at":"2026-07-05T04:22:53.612391+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.05209","created_at":"2026-07-05T04:22:53.612391+00:00"},{"alias_kind":"pith_short_12","alias_value":"NMJK5ENWGG5J","created_at":"2026-07-05T04:22:53.612391+00:00"},{"alias_kind":"pith_short_16","alias_value":"NMJK5ENWGG5JD2QW","created_at":"2026-07-05T04:22:53.612391+00:00"},{"alias_kind":"pith_short_8","alias_value":"NMJK5ENW","created_at":"2026-07-05T04:22:53.612391+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2508.18072","citing_title":"Horizonless star based on regular black hole with finite radius and its observational signatures","ref_index":65,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN","json":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN.json","graph_json":"https://pith.science/api/pith-number/NMJK5ENWGG5JD2QWIHRO345GZN/graph.json","events_json":"https://pith.science/api/pith-number/NMJK5ENWGG5JD2QWIHRO345GZN/events.json","paper":"https://pith.science/paper/NMJK5ENW"},"agent_actions":{"view_html":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN","download_json":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN.json","view_paper":"https://pith.science/paper/NMJK5ENW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2201.05209&json=true","fetch_graph":"https://pith.science/api/pith-number/NMJK5ENWGG5JD2QWIHRO345GZN/graph.json","fetch_events":"https://pith.science/api/pith-number/NMJK5ENWGG5JD2QWIHRO345GZN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN/action/storage_attestation","attest_author":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN/action/author_attestation","sign_citation":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN/action/citation_signature","submit_replication":"https://pith.science/pith/NMJK5ENWGG5JD2QWIHRO345GZN/action/replication_record"}},"created_at":"2026-07-05T04:22:53.612391+00:00","updated_at":"2026-07-05T04:22:53.612391+00:00"}