{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:UNWVNBIXWA7D2UYN5ONCUDCOYE","short_pith_number":"pith:UNWVNBIX","schema_version":"1.0","canonical_sha256":"a36d568517b03e3d530deb9a2a0c4ec10f84a304fecfac9a75c02b9560c394ac","source":{"kind":"arxiv","id":"2311.01863","version":2},"attestation_state":"computed","paper":{"title":"Gravitational Waves Generated by Null Cosmic Strings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"D.V. Fursaev, E.A. Davydov, I.G. Pirozhenko, V.A. Tainov","submitted_at":"2023-11-03T12:12:36Z","abstract_excerpt":"Null cosmic strings are shown to disturb gravitational fields of massive bodies and create outgoing gravitational waves (GW). Perturbations of the metric caused by a straight null string and a point-like massive source are found as solutions to linearized Einstein equations on a flat space-time. An analytic approximation for their asymptotic at future null infinity is derived. A space-time created by the source and the string is shown to have asymptotically polyhomogeneous form. We calculate GW flux in such space-times and demonstrate that the averaged intensity of the radiation is maximal in "},"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":"2311.01863","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-11-03T12:12:36Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"087dd7d0378dbe0a8516c49053dbff2bf6e8bf3a61f729ceeaedf1fc0c7bc467","abstract_canon_sha256":"15671fbdd0201943300214d6c30517b1bcc40772de2a5518f74ae5075947f495"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:06:26.035817Z","signature_b64":"ETzT41TUCzTg9rJ1UPEp/haUaMSebDhu/on7zn0kVOdAiyhaQl2LLvp16x0K70aYB829CHlRM2BELednr0vyCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a36d568517b03e3d530deb9a2a0c4ec10f84a304fecfac9a75c02b9560c394ac","last_reissued_at":"2026-07-05T08:06:26.035292Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:06:26.035292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational Waves Generated by Null Cosmic Strings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"D.V. Fursaev, E.A. Davydov, I.G. Pirozhenko, V.A. Tainov","submitted_at":"2023-11-03T12:12:36Z","abstract_excerpt":"Null cosmic strings are shown to disturb gravitational fields of massive bodies and create outgoing gravitational waves (GW). Perturbations of the metric caused by a straight null string and a point-like massive source are found as solutions to linearized Einstein equations on a flat space-time. An analytic approximation for their asymptotic at future null infinity is derived. A space-time created by the source and the string is shown to have asymptotically polyhomogeneous form. We calculate GW flux in such space-times and demonstrate that the averaged intensity of the radiation is maximal in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.01863","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/2311.01863/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":"2311.01863","created_at":"2026-07-05T08:06:26.035385+00:00"},{"alias_kind":"arxiv_version","alias_value":"2311.01863v2","created_at":"2026-07-05T08:06:26.035385+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.01863","created_at":"2026-07-05T08:06:26.035385+00:00"},{"alias_kind":"pith_short_12","alias_value":"UNWVNBIXWA7D","created_at":"2026-07-05T08:06:26.035385+00:00"},{"alias_kind":"pith_short_16","alias_value":"UNWVNBIXWA7D2UYN","created_at":"2026-07-05T08:06:26.035385+00:00"},{"alias_kind":"pith_short_8","alias_value":"UNWVNBIX","created_at":"2026-07-05T08:06:26.035385+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.10749","citing_title":"Gravitational Waves in High Energy Fixed-Target Collisions","ref_index":16,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE","json":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE.json","graph_json":"https://pith.science/api/pith-number/UNWVNBIXWA7D2UYN5ONCUDCOYE/graph.json","events_json":"https://pith.science/api/pith-number/UNWVNBIXWA7D2UYN5ONCUDCOYE/events.json","paper":"https://pith.science/paper/UNWVNBIX"},"agent_actions":{"view_html":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE","download_json":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE.json","view_paper":"https://pith.science/paper/UNWVNBIX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2311.01863&json=true","fetch_graph":"https://pith.science/api/pith-number/UNWVNBIXWA7D2UYN5ONCUDCOYE/graph.json","fetch_events":"https://pith.science/api/pith-number/UNWVNBIXWA7D2UYN5ONCUDCOYE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE/action/storage_attestation","attest_author":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE/action/author_attestation","sign_citation":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE/action/citation_signature","submit_replication":"https://pith.science/pith/UNWVNBIXWA7D2UYN5ONCUDCOYE/action/replication_record"}},"created_at":"2026-07-05T08:06:26.035385+00:00","updated_at":"2026-07-05T08:06:26.035385+00:00"}