{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AB6SC34AVOQRN3PIHD5NA2MJUB","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":"fc6753b1b6605ec509b0c40d3540b51d7a74037beec512e430f4e146a4ebc46d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-25T19:50:19Z","title_canon_sha256":"15ec2540744e07ca93bebe2d3336065b00d1592ae1fe5ef747b4843e2ed553d4"},"schema_version":"1.0","source":{"id":"1704.07886","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.07886","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"arxiv_version","alias_value":"1704.07886v1","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.07886","created_at":"2026-05-18T00:23:45Z"},{"alias_kind":"pith_short_12","alias_value":"AB6SC34AVOQR","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AB6SC34AVOQRN3PI","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AB6SC34A","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:2ce3659287169071c66e356fc67bbbc0ab52eeecd8a6c7ca5db2f022956721d7","target":"graph","created_at":"2026-05-18T00:23:45Z","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"},"paper":{"abstract_excerpt":"We calculate the electromagnetic signal of a gamma-ray flare coming from the surface of a neutron star shortly before merger with a black hole companion. Using a new version of the Monte Carlo radiation transport code Pandurata that incorporates dynamic spacetimes, we integrate photon geodesics from the neutron star surface until they reach a distant observer or are captured by the black hole. The gamma-ray light curve is modulated by a number of relativistic effects, including Doppler beaming and gravitational lensing. Because the photons originate from the inspiraling neutron star, the light","authors_text":"Bernard J. Kelly, David Tsang, Jeremy D. Schnittman, Jordan Camp, Tito Dal Canton","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-25T19:50:19Z","title":"Electromagnetic Chirps from Neutron Star-Black Hole Mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07886","kind":"arxiv","version":1},"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":"sha256:3d19f0ec687784c516966ff60b5eb7198146a46e2e1e919d8d7bd7808615cbab","target":"record","created_at":"2026-05-18T00:23:45Z","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":"fc6753b1b6605ec509b0c40d3540b51d7a74037beec512e430f4e146a4ebc46d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-25T19:50:19Z","title_canon_sha256":"15ec2540744e07ca93bebe2d3336065b00d1592ae1fe5ef747b4843e2ed553d4"},"schema_version":"1.0","source":{"id":"1704.07886","kind":"arxiv","version":1}},"canonical_sha256":"007d216f80aba116ede838fad06989a044f906e65987e7c95d7e571400980c84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"007d216f80aba116ede838fad06989a044f906e65987e7c95d7e571400980c84","first_computed_at":"2026-05-18T00:23:45.717276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:45.717276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/O3NvSGUEidTFsTbWCEXoXAQEEj8Qx59AG4p2uYev02C1ZrQRCx8dzEpJMFLE4qBdQ5ukilR5oLaOEj4eodkBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:45.717939Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.07886","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d19f0ec687784c516966ff60b5eb7198146a46e2e1e919d8d7bd7808615cbab","sha256:2ce3659287169071c66e356fc67bbbc0ab52eeecd8a6c7ca5db2f022956721d7"],"state_sha256":"19c28c433acf0b68c97a4b83e4019eb14f3cd3edc44270afdb1afbae6eb9a2dd"}