{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:VK5WAMJSARJP5JXN6CDYCYGNIJ","short_pith_number":"pith:VK5WAMJS","schema_version":"1.0","canonical_sha256":"aabb6031320452fea6edf0878160cd427158d3c9c83f459a408365989589f97f","source":{"kind":"arxiv","id":"1806.03843","version":2},"attestation_state":"computed","paper":{"title":"Late-time Evolution of Afterglows from Off-Axis Neutron-Star Mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Gavin P Lamb, Ilya Mandel, Lekshmi Resmi","submitted_at":"2018-06-11T07:39:42Z","abstract_excerpt":"Gravitational-wave detected neutron star mergers provide an opportunity to investigate short gamma-ray burst (GRB) jet afterglows without the GRB trigger. Here we show that the post-peak afterglow decline can distinguish between an initially ultra-relativistic jet viewed off-axis and a mildly relativistic wide-angle outflow. Post-peak the afterglow flux will decline as $F_\\nu \\propto t^{-\\alpha}$. The steepest decline for a jet afterglow is $\\alpha>3p/4$ or $> (3p+1)/4$, for an observation frequency below and above the cooling frequency, respectively, where $p$ is the power-law index of the el"},"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":"1806.03843","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-11T07:39:42Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d0c65260c580d1fbbd8a84d3d539c2b593e7bbd49f158c9682a49c3c347dba85","abstract_canon_sha256":"27d6b84c0a477bdaf6b50eac6ffb7d14f24e1391b77990f684fb7e34c02ff493"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:34.055724Z","signature_b64":"Stt5kHMzXep4YOOdROdGWsuj0aZqeMgNY7rl4OqAMZBuvBMsQFd9+EF0Am2WjlJSQCHM+hNF0lbUFGQ/5RUxDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aabb6031320452fea6edf0878160cd427158d3c9c83f459a408365989589f97f","last_reissued_at":"2026-05-18T00:07:34.055290Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:34.055290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Late-time Evolution of Afterglows from Off-Axis Neutron-Star Mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Gavin P Lamb, Ilya Mandel, Lekshmi Resmi","submitted_at":"2018-06-11T07:39:42Z","abstract_excerpt":"Gravitational-wave detected neutron star mergers provide an opportunity to investigate short gamma-ray burst (GRB) jet afterglows without the GRB trigger. Here we show that the post-peak afterglow decline can distinguish between an initially ultra-relativistic jet viewed off-axis and a mildly relativistic wide-angle outflow. Post-peak the afterglow flux will decline as $F_\\nu \\propto t^{-\\alpha}$. The steepest decline for a jet afterglow is $\\alpha>3p/4$ or $> (3p+1)/4$, for an observation frequency below and above the cooling frequency, respectively, where $p$ is the power-law index of the el"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03843","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":""},"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":"1806.03843","created_at":"2026-05-18T00:07:34.055368+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.03843v2","created_at":"2026-05-18T00:07:34.055368+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03843","created_at":"2026-05-18T00:07:34.055368+00:00"},{"alias_kind":"pith_short_12","alias_value":"VK5WAMJSARJP","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_16","alias_value":"VK5WAMJSARJP5JXN","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_8","alias_value":"VK5WAMJS","created_at":"2026-05-18T12:32:59.047623+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ","json":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ.json","graph_json":"https://pith.science/api/pith-number/VK5WAMJSARJP5JXN6CDYCYGNIJ/graph.json","events_json":"https://pith.science/api/pith-number/VK5WAMJSARJP5JXN6CDYCYGNIJ/events.json","paper":"https://pith.science/paper/VK5WAMJS"},"agent_actions":{"view_html":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ","download_json":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ.json","view_paper":"https://pith.science/paper/VK5WAMJS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.03843&json=true","fetch_graph":"https://pith.science/api/pith-number/VK5WAMJSARJP5JXN6CDYCYGNIJ/graph.json","fetch_events":"https://pith.science/api/pith-number/VK5WAMJSARJP5JXN6CDYCYGNIJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ/action/storage_attestation","attest_author":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ/action/author_attestation","sign_citation":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ/action/citation_signature","submit_replication":"https://pith.science/pith/VK5WAMJSARJP5JXN6CDYCYGNIJ/action/replication_record"}},"created_at":"2026-05-18T00:07:34.055368+00:00","updated_at":"2026-05-18T00:07:34.055368+00:00"}