{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:ZVRSS7ZNNSQLZOX36N5VAGWQOY","short_pith_number":"pith:ZVRSS7ZN","schema_version":"1.0","canonical_sha256":"cd63297f2d6ca0bcbafbf37b501ad0762d6422d1d0667467a29d3fee63e0fd97","source":{"kind":"arxiv","id":"1312.1150","version":3},"attestation_state":"computed","paper":{"title":"Exact interior solutions in (2 + 1) dimensional spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. A. Usmani, Farook Rahaman, Piyali Bhar, Ritabrata Biswas","submitted_at":"2013-12-03T11:04:31Z","abstract_excerpt":"We provide a new class of exact solutions for the interior in (2 + 1) dimensional spacetime. The solutions obtained for the perfect fluid model both with and without cosmological constant ($\\Lambda$) are found to be regular and singularity free. It assume very simple analytical forms that help us to study the various physical properties of the configuration. Solutions without $\\Lambda$ are found to be physically acceptable."},"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":"1312.1150","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-12-03T11:04:31Z","cross_cats_sorted":[],"title_canon_sha256":"e18ecdde8c9838ad95ea9569caafd08caaf164d61eea1dc3d739f94085e4814c","abstract_canon_sha256":"cd297c49507f740f31da97cd1c41d16aef5cfbf9a930dd351bffac12c5675cb5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:49.410542Z","signature_b64":"iyTVaZBGEiAa2y2Urqi4nzS8i8A1nCi8w3emFHJnO1zv/s2L/Uiwp0IZkmogCsJttH+pZvbgRT0Xb/md7rMuCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd63297f2d6ca0bcbafbf37b501ad0762d6422d1d0667467a29d3fee63e0fd97","last_reissued_at":"2026-05-18T02:52:49.410140Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:49.410140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exact interior solutions in (2 + 1) dimensional spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. A. Usmani, Farook Rahaman, Piyali Bhar, Ritabrata Biswas","submitted_at":"2013-12-03T11:04:31Z","abstract_excerpt":"We provide a new class of exact solutions for the interior in (2 + 1) dimensional spacetime. The solutions obtained for the perfect fluid model both with and without cosmological constant ($\\Lambda$) are found to be regular and singularity free. It assume very simple analytical forms that help us to study the various physical properties of the configuration. Solutions without $\\Lambda$ are found to be physically acceptable."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.1150","kind":"arxiv","version":3},"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":"1312.1150","created_at":"2026-05-18T02:52:49.410196+00:00"},{"alias_kind":"arxiv_version","alias_value":"1312.1150v3","created_at":"2026-05-18T02:52:49.410196+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.1150","created_at":"2026-05-18T02:52:49.410196+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZVRSS7ZNNSQL","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZVRSS7ZNNSQLZOX3","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZVRSS7ZN","created_at":"2026-05-18T12:28:09.283467+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/ZVRSS7ZNNSQLZOX36N5VAGWQOY","json":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY.json","graph_json":"https://pith.science/api/pith-number/ZVRSS7ZNNSQLZOX36N5VAGWQOY/graph.json","events_json":"https://pith.science/api/pith-number/ZVRSS7ZNNSQLZOX36N5VAGWQOY/events.json","paper":"https://pith.science/paper/ZVRSS7ZN"},"agent_actions":{"view_html":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY","download_json":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY.json","view_paper":"https://pith.science/paper/ZVRSS7ZN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1312.1150&json=true","fetch_graph":"https://pith.science/api/pith-number/ZVRSS7ZNNSQLZOX36N5VAGWQOY/graph.json","fetch_events":"https://pith.science/api/pith-number/ZVRSS7ZNNSQLZOX36N5VAGWQOY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY/action/storage_attestation","attest_author":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY/action/author_attestation","sign_citation":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY/action/citation_signature","submit_replication":"https://pith.science/pith/ZVRSS7ZNNSQLZOX36N5VAGWQOY/action/replication_record"}},"created_at":"2026-05-18T02:52:49.410196+00:00","updated_at":"2026-05-18T02:52:49.410196+00:00"}