{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:L5V6GYHTGJHUS7BZZHCMRMUTT5","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":"c956903779ea4ad9eb8383cf6a193db0e2d73ad1b87588391204f4dda47da270","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-08T19:00:02Z","title_canon_sha256":"cc33f152b394c635f028a4d4d1f6ec768f188bf74efb6324d0122a85882044ff"},"schema_version":"1.0","source":{"id":"1712.03237","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.03237","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"arxiv_version","alias_value":"1712.03237v4","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.03237","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"pith_short_12","alias_value":"L5V6GYHTGJHU","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"L5V6GYHTGJHUS7BZ","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"L5V6GYHT","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:ccc06f7e4faff75263c8267fd8a0dbd4ab6f3affca40adb8aa04cfe069837b2b","target":"graph","created_at":"2026-05-18T00:12:53Z","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":"The binary neutron star (BNS) merger GW170817 was the first astrophysical source detected in gravitational waves and multi-wavelength electromagnetic radiation. The almost simultaneous observation of a pulse of gamma-rays proved that BNS mergers are associated with at least some short gamma-ray bursts (GRBs). However, the gamma-ray pulse was faint, casting doubts on the association of BNS mergers with the luminous, highly relativistic outflows of canonical short GRBs. Here we show that structured jets with a relativistic, energetic core surrounded by slower and less energetic wings produce aft","authors_text":"Brian J. Morsony, Bruno Giacomazzo, Davide Lazzati, Diego L\\'opez-C\\'amara, Jared C. Workman, Matteo Cantiello, Riccardo Ciolfi, Rosalba Perna","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-08T19:00:02Z","title":"Late time afterglow observations reveal a collimated relativistic jet in the ejecta of the binary neutron star merger GW170817"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.03237","kind":"arxiv","version":4},"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:e493459dd02dc32b65cbf91b644e040f58858461a048ae2e2c4a21105267038c","target":"record","created_at":"2026-05-18T00:12:53Z","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":"c956903779ea4ad9eb8383cf6a193db0e2d73ad1b87588391204f4dda47da270","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-08T19:00:02Z","title_canon_sha256":"cc33f152b394c635f028a4d4d1f6ec768f188bf74efb6324d0122a85882044ff"},"schema_version":"1.0","source":{"id":"1712.03237","kind":"arxiv","version":4}},"canonical_sha256":"5f6be360f3324f497c39c9c4c8b2939f5e2c6be214a9c42b3ca0876b1ea585e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f6be360f3324f497c39c9c4c8b2939f5e2c6be214a9c42b3ca0876b1ea585e9","first_computed_at":"2026-05-18T00:12:53.913611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:53.913611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PdPhlnl6TZAQQRVaiIxT2+A4ny+B1DWTPzlIsgKsjB1wFjo9oZxMXr19a0rsZCPxj9jHcnG7d2qilSDuPUpiBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:53.914280Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.03237","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e493459dd02dc32b65cbf91b644e040f58858461a048ae2e2c4a21105267038c","sha256:ccc06f7e4faff75263c8267fd8a0dbd4ab6f3affca40adb8aa04cfe069837b2b"],"state_sha256":"d1af261e6fbe55ed08d33006a149ae1371483b2f486a6a8941ecdc2acd6cf9ee"}