{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:EZQFX7W7L336WJBO7OPATDMA4P","short_pith_number":"pith:EZQFX7W7","schema_version":"1.0","canonical_sha256":"26605bfedf5ef7eb242efb9e098d80e3e943e25f07b95061b214d2a99efca51d","source":{"kind":"arxiv","id":"1303.1301","version":2},"attestation_state":"computed","paper":{"title":"Observational Upper Bound on the Cosmic Abundances of Negative-mass Compact Objects and Ellis Wormholes from the Sloan Digital Sky Survey Quasar Lens Search","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Hideki Asada, Ryuichi Takahashi","submitted_at":"2013-03-06T11:08:23Z","abstract_excerpt":"The latest result in the Sloan Digital Sky Survey Quasar Lens Search (SQLS) has set the first cosmological constraints on negative-mass compact objects and Ellis wormholes. There are no multiple images lensed by the above two exotic objects for $\\sim 50000$ distant quasars in the SQLS data. Therefore, an upper bound is put on the cosmic abundances of these lenses. The number density of negative mass compact objects is $n<10^{-8} (10^{-4}) h^3 {\\rm Mpc}^{-3}$ at the mass scale $|M| > 10^{15} (10^{12}) M_\\odot$, which corresponds to the cosmological density parameter $|\\Omega| < 10^{-4}$ at the "},"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":"1303.1301","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-06T11:08:23Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"95b8773342429652a98ecb5a9190d050ee31241fbe1f3784d5206cfb1ee5ade4","abstract_canon_sha256":"6c2d2729322cc124474e3c9d55ab347875975ceb9962ebb93b6cf47a751d92fa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:16.344464Z","signature_b64":"WGgtAhQhSRyjPbNF9oMOTzVS2KTlu99nhoCbvxgrJNjKctBlQhazJnbfhaN6epp2LWrnojLbCadlGazX1yk+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26605bfedf5ef7eb242efb9e098d80e3e943e25f07b95061b214d2a99efca51d","last_reissued_at":"2026-05-18T01:51:16.343857Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:16.343857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observational Upper Bound on the Cosmic Abundances of Negative-mass Compact Objects and Ellis Wormholes from the Sloan Digital Sky Survey Quasar Lens Search","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Hideki Asada, Ryuichi Takahashi","submitted_at":"2013-03-06T11:08:23Z","abstract_excerpt":"The latest result in the Sloan Digital Sky Survey Quasar Lens Search (SQLS) has set the first cosmological constraints on negative-mass compact objects and Ellis wormholes. There are no multiple images lensed by the above two exotic objects for $\\sim 50000$ distant quasars in the SQLS data. Therefore, an upper bound is put on the cosmic abundances of these lenses. The number density of negative mass compact objects is $n<10^{-8} (10^{-4}) h^3 {\\rm Mpc}^{-3}$ at the mass scale $|M| > 10^{15} (10^{12}) M_\\odot$, which corresponds to the cosmological density parameter $|\\Omega| < 10^{-4}$ at the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.1301","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":""},"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":"1303.1301","created_at":"2026-05-18T01:51:16.343937+00:00"},{"alias_kind":"arxiv_version","alias_value":"1303.1301v2","created_at":"2026-05-18T01:51:16.343937+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.1301","created_at":"2026-05-18T01:51:16.343937+00:00"},{"alias_kind":"pith_short_12","alias_value":"EZQFX7W7L336","created_at":"2026-05-18T12:27:43.054852+00:00"},{"alias_kind":"pith_short_16","alias_value":"EZQFX7W7L336WJBO","created_at":"2026-05-18T12:27:43.054852+00:00"},{"alias_kind":"pith_short_8","alias_value":"EZQFX7W7","created_at":"2026-05-18T12:27:43.054852+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.16177","citing_title":"Observational signatures of negative mass wormholes through their shadows","ref_index":31,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P","json":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P.json","graph_json":"https://pith.science/api/pith-number/EZQFX7W7L336WJBO7OPATDMA4P/graph.json","events_json":"https://pith.science/api/pith-number/EZQFX7W7L336WJBO7OPATDMA4P/events.json","paper":"https://pith.science/paper/EZQFX7W7"},"agent_actions":{"view_html":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P","download_json":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P.json","view_paper":"https://pith.science/paper/EZQFX7W7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1303.1301&json=true","fetch_graph":"https://pith.science/api/pith-number/EZQFX7W7L336WJBO7OPATDMA4P/graph.json","fetch_events":"https://pith.science/api/pith-number/EZQFX7W7L336WJBO7OPATDMA4P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P/action/storage_attestation","attest_author":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P/action/author_attestation","sign_citation":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P/action/citation_signature","submit_replication":"https://pith.science/pith/EZQFX7W7L336WJBO7OPATDMA4P/action/replication_record"}},"created_at":"2026-05-18T01:51:16.343937+00:00","updated_at":"2026-05-18T01:51:16.343937+00:00"}