{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:SOBXMZAX7TGBDLVWCJVHHFD4GZ","short_pith_number":"pith:SOBXMZAX","canonical_record":{"source":{"id":"2405.20329","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-30T17:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"8c615f45c2c666968b017aebac102ded9b618498c6830a2aad051dbc974f3aab","abstract_canon_sha256":"ae5cf927afac05882bd6de5c606eb00a4714d04db4c2d1b181b49f2046849374"},"schema_version":"1.0"},"canonical_sha256":"9383766417fccc11aeb6126a73947c364dd77b550c3db1b22706d57f4ecee156","source":{"kind":"arxiv","id":"2405.20329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.20329","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"arxiv_version","alias_value":"2405.20329v1","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.20329","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_12","alias_value":"SOBXMZAX7TGB","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_16","alias_value":"SOBXMZAX7TGBDLVW","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_8","alias_value":"SOBXMZAX","created_at":"2026-07-05T08:25:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:SOBXMZAX7TGBDLVWCJVHHFD4GZ","target":"record","payload":{"canonical_record":{"source":{"id":"2405.20329","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-30T17:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"8c615f45c2c666968b017aebac102ded9b618498c6830a2aad051dbc974f3aab","abstract_canon_sha256":"ae5cf927afac05882bd6de5c606eb00a4714d04db4c2d1b181b49f2046849374"},"schema_version":"1.0"},"canonical_sha256":"9383766417fccc11aeb6126a73947c364dd77b550c3db1b22706d57f4ecee156","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:25:24.333754Z","signature_b64":"pSj9/pnSSre4H8PAunFA7fwLfKD0SR4k95d9LOjwE+O2oZTVHVGkfcsbYlNxLfDmXUN/bN6DM8SgIXJDp/MKBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9383766417fccc11aeb6126a73947c364dd77b550c3db1b22706d57f4ecee156","last_reissued_at":"2026-07-05T08:25:24.333243Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:25:24.333243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.20329","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PUekbD+ZcMN9fqPktHwcElrYXLKbLOML3A9U2jWU1U6dySJh8tHv5bgiAFx4Np4OYNYQ0OdBazr3usB4tSoyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:39:35.401306Z"},"content_sha256":"dd02a1da337f28c6f15ea20f33fb82938b87437265fb689baa809ade391dbc19","schema_version":"1.0","event_id":"sha256:dd02a1da337f28c6f15ea20f33fb82938b87437265fb689baa809ade391dbc19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:SOBXMZAX7TGBDLVWCJVHHFD4GZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Did Binary Neutron Star Merger GW170817 Leave Behind A Long-lived Neutron Star?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrew MacFadyen, Marcus DuPont","submitted_at":"2024-05-30T17:58:28Z","abstract_excerpt":"We consider the observational implications of the binary neutron star (BNS) merger GW170817 leaving behind a rapidly rotating massive neutron star that launches a relativistic, equatorial outflow as well as a jet. We show that if the equatorial outflow (ring) is highly beamed in the equatorial plane, its luminosity can be \"hidden\" from view until late times, even if carrying a significant fraction of the spin-down energy of the merger remnant. This hidden ring reveals itself as a re-brightening in the light curve once it slows down enough for Earth to be within the ring's relativistic beaming "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.20329","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.20329/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kioqtyi29YgaysaMNORAj9WK+Vn3ijR7oTSGqkNH7PkJUh373Shl9abyXwLTg7s3cw5S0Yoan0P43JE9+ozeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:39:35.401803Z"},"content_sha256":"d34899da87decba617d5f33c8fa7fb23840c26b6b332a9bea4efd68febc90be7","schema_version":"1.0","event_id":"sha256:d34899da87decba617d5f33c8fa7fb23840c26b6b332a9bea4efd68febc90be7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/bundle.json","state_url":"https://pith.science/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-07T05:39:35Z","links":{"resolver":"https://pith.science/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ","bundle":"https://pith.science/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/bundle.json","state":"https://pith.science/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SOBXMZAX7TGBDLVWCJVHHFD4GZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:SOBXMZAX7TGBDLVWCJVHHFD4GZ","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":"ae5cf927afac05882bd6de5c606eb00a4714d04db4c2d1b181b49f2046849374","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-30T17:58:28Z","title_canon_sha256":"8c615f45c2c666968b017aebac102ded9b618498c6830a2aad051dbc974f3aab"},"schema_version":"1.0","source":{"id":"2405.20329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.20329","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"arxiv_version","alias_value":"2405.20329v1","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.20329","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_12","alias_value":"SOBXMZAX7TGB","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_16","alias_value":"SOBXMZAX7TGBDLVW","created_at":"2026-07-05T08:25:24Z"},{"alias_kind":"pith_short_8","alias_value":"SOBXMZAX","created_at":"2026-07-05T08:25:24Z"}],"graph_snapshots":[{"event_id":"sha256:d34899da87decba617d5f33c8fa7fb23840c26b6b332a9bea4efd68febc90be7","target":"graph","created_at":"2026-07-05T08:25:24Z","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/2405.20329/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the observational implications of the binary neutron star (BNS) merger GW170817 leaving behind a rapidly rotating massive neutron star that launches a relativistic, equatorial outflow as well as a jet. We show that if the equatorial outflow (ring) is highly beamed in the equatorial plane, its luminosity can be \"hidden\" from view until late times, even if carrying a significant fraction of the spin-down energy of the merger remnant. This hidden ring reveals itself as a re-brightening in the light curve once it slows down enough for Earth to be within the ring's relativistic beaming ","authors_text":"Andrew MacFadyen, Marcus DuPont","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-30T17:58:28Z","title":"Did Binary Neutron Star Merger GW170817 Leave Behind A Long-lived Neutron Star?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.20329","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:dd02a1da337f28c6f15ea20f33fb82938b87437265fb689baa809ade391dbc19","target":"record","created_at":"2026-07-05T08:25:24Z","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":"ae5cf927afac05882bd6de5c606eb00a4714d04db4c2d1b181b49f2046849374","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-05-30T17:58:28Z","title_canon_sha256":"8c615f45c2c666968b017aebac102ded9b618498c6830a2aad051dbc974f3aab"},"schema_version":"1.0","source":{"id":"2405.20329","kind":"arxiv","version":1}},"canonical_sha256":"9383766417fccc11aeb6126a73947c364dd77b550c3db1b22706d57f4ecee156","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9383766417fccc11aeb6126a73947c364dd77b550c3db1b22706d57f4ecee156","first_computed_at":"2026-07-05T08:25:24.333243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:25:24.333243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pSj9/pnSSre4H8PAunFA7fwLfKD0SR4k95d9LOjwE+O2oZTVHVGkfcsbYlNxLfDmXUN/bN6DM8SgIXJDp/MKBA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:25:24.333754Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.20329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd02a1da337f28c6f15ea20f33fb82938b87437265fb689baa809ade391dbc19","sha256:d34899da87decba617d5f33c8fa7fb23840c26b6b332a9bea4efd68febc90be7"],"state_sha256":"c94f9705fb8cc49c51a2124bde8900eaf9a92feb4fef7af9ce9943d56eb2638a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ll55HRgbvpGNu73LyibFv+YVoWOKYuCJA2pbsaz4BjBhua3O4zb9tjnoWkleNGQX12Fxh2okXnXFEbGYiVReAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T05:39:35.407037Z","bundle_sha256":"1c59a5e47e6b654d94e2da68d86e1b8e3c591e258d05fc0ab63641a9330e1167"}}