{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:GG667UK7NAQZOQIHIVNTH2J3L2","short_pith_number":"pith:GG667UK7","schema_version":"1.0","canonical_sha256":"31bdefd15f6821974107455b33e93b5eb161c2aba63377a54a3e614609ff2aad","source":{"kind":"arxiv","id":"astro-ph/0403492","version":1},"attestation_state":"computed","paper":{"title":"Causal configurations of homogeneous energy density in general relativity","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"P. S. Negi","submitted_at":"2004-03-20T10:55:44Z","abstract_excerpt":"If the causality condition [the speed of sound always remains less than that of light in vacuum, i. e., $v \\leq c = 1$] is imposed on the spheres of homogeneous energy density, the `ratio of the specific heats', $\\gamma \\leq 2.59457$, constraints the compaction parameter, $u [\\equiv (M/a)$, mass to size ratio in geometrized units] of the dynamically stable configurations $ \\leq 0.34056 $ [corresponding to a surface redshift $(z_a) \\leq 0.771$]. Apparently, The maximum value of $u$ obtained in this manner belongs to an absolute upper bound, and gives: (i) The maximum value for static neutron st"},"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":"astro-ph/0403492","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-20T10:55:44Z","cross_cats_sorted":[],"title_canon_sha256":"f055285b50226596f070fa5d5ee4d919bb719c0d986c832255971f332307b044","abstract_canon_sha256":"cd69ebbfccb72eba1e195aa87a0dacffd41d56a87a8bf8d5a4a60ff1f9dde5ff"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:32.642106Z","signature_b64":"rW7P+QfsRtWQTe++LGaWBHw1cSvcfDWJoMKoJtlZZGn85XlsB1M6lfRIar5uAsw7RDnWHx7FrkQ1tXIPfA6LAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31bdefd15f6821974107455b33e93b5eb161c2aba63377a54a3e614609ff2aad","last_reissued_at":"2026-05-18T01:07:32.641366Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:32.641366Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Causal configurations of homogeneous energy density in general relativity","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"P. S. Negi","submitted_at":"2004-03-20T10:55:44Z","abstract_excerpt":"If the causality condition [the speed of sound always remains less than that of light in vacuum, i. e., $v \\leq c = 1$] is imposed on the spheres of homogeneous energy density, the `ratio of the specific heats', $\\gamma \\leq 2.59457$, constraints the compaction parameter, $u [\\equiv (M/a)$, mass to size ratio in geometrized units] of the dynamically stable configurations $ \\leq 0.34056 $ [corresponding to a surface redshift $(z_a) \\leq 0.771$]. Apparently, The maximum value of $u$ obtained in this manner belongs to an absolute upper bound, and gives: (i) The maximum value for static neutron st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0403492","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":""},"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":"astro-ph/0403492","created_at":"2026-05-18T01:07:32.641486+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0403492v1","created_at":"2026-05-18T01:07:32.641486+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0403492","created_at":"2026-05-18T01:07:32.641486+00:00"},{"alias_kind":"pith_short_12","alias_value":"GG667UK7NAQZ","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_16","alias_value":"GG667UK7NAQZOQIH","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_8","alias_value":"GG667UK7","created_at":"2026-05-18T12:25:52.687210+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/GG667UK7NAQZOQIHIVNTH2J3L2","json":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2.json","graph_json":"https://pith.science/api/pith-number/GG667UK7NAQZOQIHIVNTH2J3L2/graph.json","events_json":"https://pith.science/api/pith-number/GG667UK7NAQZOQIHIVNTH2J3L2/events.json","paper":"https://pith.science/paper/GG667UK7"},"agent_actions":{"view_html":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2","download_json":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2.json","view_paper":"https://pith.science/paper/GG667UK7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0403492&json=true","fetch_graph":"https://pith.science/api/pith-number/GG667UK7NAQZOQIHIVNTH2J3L2/graph.json","fetch_events":"https://pith.science/api/pith-number/GG667UK7NAQZOQIHIVNTH2J3L2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2/action/storage_attestation","attest_author":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2/action/author_attestation","sign_citation":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2/action/citation_signature","submit_replication":"https://pith.science/pith/GG667UK7NAQZOQIHIVNTH2J3L2/action/replication_record"}},"created_at":"2026-05-18T01:07:32.641486+00:00","updated_at":"2026-05-18T01:07:32.641486+00:00"}