{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2D6T44NOUXSAJIWYU3IXFP5YR7","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"26e112940f58fc4961419b297dafcc6e8541064c757a9275eda7c277b0492b8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-01-23T17:54:20Z","title_canon_sha256":"a44e56c01f0a69f61519852bacf50e9a7b8bc7260921795536657316e3d9f4e7"},"schema_version":"1.0","source":{"id":"2001.08706","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08706","created_at":"2026-07-05T01:07:26Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08706v2","created_at":"2026-07-05T01:07:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08706","created_at":"2026-07-05T01:07:26Z"},{"alias_kind":"pith_short_12","alias_value":"2D6T44NOUXSA","created_at":"2026-07-05T01:07:26Z"},{"alias_kind":"pith_short_16","alias_value":"2D6T44NOUXSAJIWY","created_at":"2026-07-05T01:07:26Z"},{"alias_kind":"pith_short_8","alias_value":"2D6T44NO","created_at":"2026-07-05T01:07:26Z"}],"graph_snapshots":[{"event_id":"sha256:cce61536109b246b58e95432a78f10e1c31480ee01699c8fb2fe62d2d0b9b269","target":"graph","created_at":"2026-07-05T01:07:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2001.08706/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Short gamma-ray bursts (SGRBs) are now known to be the product of the merger of two compact objects. However, two possible formation channels exist: neutron star -- neutron star (NS -- NS) or NS -- black hole (BH). The landmark SGRB 170817A provided evidence for the NS -- NS channel, thanks to analysis of its gravitational wave signal. We investigate the complete population of SGRBs with an associated redshift (39 events), and search for any divisions that may indicate that a NS -- BH formation channel also contributes. Though no conclusive dichotomy is found, we find several lines of evidence","authors_text":"A. J. Levan, B. P. Gompertz, N. R. Tanvir","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-01-23T17:54:20Z","title":"A Search for Neutron Star-Black Hole Binary Mergers in the Short Gamma-Ray Burst Population"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08706","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:272e03d00176b4d1d4684ffd0c96b49ba5a41d1ab57f6ccf92d4b73467e94b9d","target":"record","created_at":"2026-07-05T01:07:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"26e112940f58fc4961419b297dafcc6e8541064c757a9275eda7c277b0492b8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-01-23T17:54:20Z","title_canon_sha256":"a44e56c01f0a69f61519852bacf50e9a7b8bc7260921795536657316e3d9f4e7"},"schema_version":"1.0","source":{"id":"2001.08706","kind":"arxiv","version":2}},"canonical_sha256":"d0fd3e71aea5e404a2d8a6d172bfb88fc3f6a52f3c1813d8f02aaa4a36282e4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0fd3e71aea5e404a2d8a6d172bfb88fc3f6a52f3c1813d8f02aaa4a36282e4b","first_computed_at":"2026-07-05T01:07:26.440459Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:07:26.440459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"69jx5cghoYqRtdl2obDxsKevhs2Ja2pBBHjMrIKreUgmE2cHihN3skAcMbaMr0PqQfjDIsAqFSE8ND6Q10J4Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:07:26.440923Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.08706","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:272e03d00176b4d1d4684ffd0c96b49ba5a41d1ab57f6ccf92d4b73467e94b9d","sha256:cce61536109b246b58e95432a78f10e1c31480ee01699c8fb2fe62d2d0b9b269"],"state_sha256":"5b96d6646b8a2fee733bfd0394875dc564464f1b39578e3e93e934dbd5f23927"}