{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:PYQYZH6EAAGHKMYIB5LJZRCG7U","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":"198fe6f978e0869bd73818a58b926a2a5e8fc1490e0da08c0f167aa3229568d4","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-27T17:06:14Z","title_canon_sha256":"c02df1181a59dd1da6c151b72fce8ecb15d7a444c38246e02876af82013693c8"},"schema_version":"1.0","source":{"id":"astro-ph/9807272","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9807272","created_at":"2026-07-04T16:06:52Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9807272v2","created_at":"2026-07-04T16:06:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9807272","created_at":"2026-07-04T16:06:52Z"},{"alias_kind":"pith_short_12","alias_value":"PYQYZH6EAAGH","created_at":"2026-07-04T16:06:52Z"},{"alias_kind":"pith_short_16","alias_value":"PYQYZH6EAAGHKMYI","created_at":"2026-07-04T16:06:52Z"},{"alias_kind":"pith_short_8","alias_value":"PYQYZH6E","created_at":"2026-07-04T16:06:52Z"}],"graph_snapshots":[{"event_id":"sha256:11a73aa9a19f39ec363da922a6b6df613efce76f075bb5fa1a5411f6143c8186","target":"graph","created_at":"2026-07-04T16:06:52Z","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/astro-ph/9807272/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Mergers of neutron stars (NS+NS) or neutron stars and stellar mass black holes (NS+BS) eject a small fraction of matter with a sub-relativistic velocity. Upon rapid decompression nuclear density medium condenses into neutron rich nuclei, most of them radioactive. Radioactivity provides a long term heat source for the expanding envelope. A brief transient has the peak luminosity in the supernova range, and the bulk of radiation in the UV -- Optical domain. We present a very crude model of the phenomenon, and simple analytical formulae which may be used to estimate the parameters of a transient ","authors_text":"Bohdan Paczy\\'nski, Li-Xin Li","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-07-27T17:06:14Z","title":"Transient Events from Neutron Star Mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9807272","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":"sha256:4a73e2d57180925cc02d302b68f3c38575abd467d7cb14cbf4ae4ea564885bb2","target":"record","created_at":"2026-07-04T16:06:52Z","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":"198fe6f978e0869bd73818a58b926a2a5e8fc1490e0da08c0f167aa3229568d4","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-27T17:06:14Z","title_canon_sha256":"c02df1181a59dd1da6c151b72fce8ecb15d7a444c38246e02876af82013693c8"},"schema_version":"1.0","source":{"id":"astro-ph/9807272","kind":"arxiv","version":2}},"canonical_sha256":"7e218c9fc4000c7533080f569cc446fd1aa6472abfa86334e24bdd57e864c8c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e218c9fc4000c7533080f569cc446fd1aa6472abfa86334e24bdd57e864c8c0","first_computed_at":"2026-07-04T16:06:52.728937Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:06:52.728937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0OBYkCNKGLTSyXCDXEutIqf5DNJRLdpyaGYd85GQgh4cFlDS0iJ4EmFCn+MANKHmFI7kToSRO5cskgUtxjXQCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:06:52.729332Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9807272","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a73e2d57180925cc02d302b68f3c38575abd467d7cb14cbf4ae4ea564885bb2","sha256:11a73aa9a19f39ec363da922a6b6df613efce76f075bb5fa1a5411f6143c8186"],"state_sha256":"e07c30f14fb4fcb13cceb7be65eb6bc23dd78abc004ad5a4f87b383e4ded1076"}