{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:SBOHVOALPOQ2JF4O7WETKTGH5B","short_pith_number":"pith:SBOHVOAL","canonical_record":{"source":{"id":"2411.05065","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-11-07T19:00:01Z","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"title_canon_sha256":"ec7998a70dda35bf74214290c338b71e8204af3ed4a22ab584b65cc07e67f7a5","abstract_canon_sha256":"646c83335a13f74009fd821606460a09176e2236d5dbc2edf0cd5a212ff28d20"},"schema_version":"1.0"},"canonical_sha256":"905c7ab80b7ba1a4978efd89354cc7e866c58dee02bc98ca992cf42e97d07759","source":{"kind":"arxiv","id":"2411.05065","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.05065","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"arxiv_version","alias_value":"2411.05065v2","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.05065","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_12","alias_value":"SBOHVOALPOQ2","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_16","alias_value":"SBOHVOALPOQ2JF4O","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_8","alias_value":"SBOHVOAL","created_at":"2026-07-05T11:22:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:SBOHVOALPOQ2JF4O7WETKTGH5B","target":"record","payload":{"canonical_record":{"source":{"id":"2411.05065","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-11-07T19:00:01Z","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"title_canon_sha256":"ec7998a70dda35bf74214290c338b71e8204af3ed4a22ab584b65cc07e67f7a5","abstract_canon_sha256":"646c83335a13f74009fd821606460a09176e2236d5dbc2edf0cd5a212ff28d20"},"schema_version":"1.0"},"canonical_sha256":"905c7ab80b7ba1a4978efd89354cc7e866c58dee02bc98ca992cf42e97d07759","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:22:33.198980Z","signature_b64":"WlioVyN+Os1ZgvCFMnH567J6zRmEwmezR9qBp4ieGRaWa+8hv7T8Gye5vwWLwDgZc0X6gDJ3ZrYszh5nJgSpDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"905c7ab80b7ba1a4978efd89354cc7e866c58dee02bc98ca992cf42e97d07759","last_reissued_at":"2026-07-05T11:22:33.198356Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:22:33.198356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.05065","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:22:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FTc7gEgH43Y6MkfaTCmlAdu3S+4Z6wEN01ZFeBWtNWhLL6tn2nvlmJzB7z5Vd7k4sDL5D4kIemuy8txLqRNWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:25:50.278875Z"},"content_sha256":"a2952e8d36b9e06a5a36e0311d1113cd980baf9fd3e19d32dee4ce4017197d08","schema_version":"1.0","event_id":"sha256:a2952e8d36b9e06a5a36e0311d1113cd980baf9fd3e19d32dee4ce4017197d08"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:SBOHVOALPOQ2JF4O7WETKTGH5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational Waves from Primordial Black Hole Dark Matter Spikes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Hai-Bo Yu, Simeon Bird, Wei-Xiang Feng","submitted_at":"2024-11-07T19:00:01Z","abstract_excerpt":"The origin of the binary black hole mergers observed by LIGO--Virgo--KAGRA remains an open question. We calculate the merger rate from primordial black holes (PBHs) within the density spike around supermassive black holes (SMBHs) at the centers of galaxies. We show that the merger rate within the spike is comparable to that within the wider dark matter halo. We also calculate the extreme mass ratio inspiral (EMRI) signal from PBHs hosted within the density spike spiralling into their host SMBHs due to gravitational wave emission. We predict that LISA may detect $\\sim10^4$ of these EMRIs with a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.05065","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2411.05065/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":"2026-07-05T11:22:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZBPLB23VM37lw4M2PdK1po7YmbZMlqHhkX/4y+IPx+XZNeLSmFsqwDz7cVxDDHYKZTp2pubQ2lonwpDMOxW8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:25:50.279481Z"},"content_sha256":"eef1c77f6dc368f38ff92fb351aa9a42ec0c6c1768a46956233e3e99b5611f48","schema_version":"1.0","event_id":"sha256:eef1c77f6dc368f38ff92fb351aa9a42ec0c6c1768a46956233e3e99b5611f48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/bundle.json","state_url":"https://pith.science/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/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":"2026-08-07T09:25:50Z","links":{"resolver":"https://pith.science/pith/SBOHVOALPOQ2JF4O7WETKTGH5B","bundle":"https://pith.science/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/bundle.json","state":"https://pith.science/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SBOHVOALPOQ2JF4O7WETKTGH5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:SBOHVOALPOQ2JF4O7WETKTGH5B","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":"646c83335a13f74009fd821606460a09176e2236d5dbc2edf0cd5a212ff28d20","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-11-07T19:00:01Z","title_canon_sha256":"ec7998a70dda35bf74214290c338b71e8204af3ed4a22ab584b65cc07e67f7a5"},"schema_version":"1.0","source":{"id":"2411.05065","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.05065","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"arxiv_version","alias_value":"2411.05065v2","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.05065","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_12","alias_value":"SBOHVOALPOQ2","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_16","alias_value":"SBOHVOALPOQ2JF4O","created_at":"2026-07-05T11:22:33Z"},{"alias_kind":"pith_short_8","alias_value":"SBOHVOAL","created_at":"2026-07-05T11:22:33Z"}],"graph_snapshots":[{"event_id":"sha256:eef1c77f6dc368f38ff92fb351aa9a42ec0c6c1768a46956233e3e99b5611f48","target":"graph","created_at":"2026-07-05T11:22:33Z","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/2411.05065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The origin of the binary black hole mergers observed by LIGO--Virgo--KAGRA remains an open question. We calculate the merger rate from primordial black holes (PBHs) within the density spike around supermassive black holes (SMBHs) at the centers of galaxies. We show that the merger rate within the spike is comparable to that within the wider dark matter halo. We also calculate the extreme mass ratio inspiral (EMRI) signal from PBHs hosted within the density spike spiralling into their host SMBHs due to gravitational wave emission. We predict that LISA may detect $\\sim10^4$ of these EMRIs with a","authors_text":"Hai-Bo Yu, Simeon Bird, Wei-Xiang Feng","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-11-07T19:00:01Z","title":"Gravitational Waves from Primordial Black Hole Dark Matter Spikes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.05065","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:a2952e8d36b9e06a5a36e0311d1113cd980baf9fd3e19d32dee4ce4017197d08","target":"record","created_at":"2026-07-05T11:22:33Z","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":"646c83335a13f74009fd821606460a09176e2236d5dbc2edf0cd5a212ff28d20","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-11-07T19:00:01Z","title_canon_sha256":"ec7998a70dda35bf74214290c338b71e8204af3ed4a22ab584b65cc07e67f7a5"},"schema_version":"1.0","source":{"id":"2411.05065","kind":"arxiv","version":2}},"canonical_sha256":"905c7ab80b7ba1a4978efd89354cc7e866c58dee02bc98ca992cf42e97d07759","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"905c7ab80b7ba1a4978efd89354cc7e866c58dee02bc98ca992cf42e97d07759","first_computed_at":"2026-07-05T11:22:33.198356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:22:33.198356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WlioVyN+Os1ZgvCFMnH567J6zRmEwmezR9qBp4ieGRaWa+8hv7T8Gye5vwWLwDgZc0X6gDJ3ZrYszh5nJgSpDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:22:33.198980Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.05065","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2952e8d36b9e06a5a36e0311d1113cd980baf9fd3e19d32dee4ce4017197d08","sha256:eef1c77f6dc368f38ff92fb351aa9a42ec0c6c1768a46956233e3e99b5611f48"],"state_sha256":"ae0e8f4f2ff42a7b4219f3ffa24a0e497d9c77bd50888d604d47f5d3a63d7461"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQcUFqTT1YcLkUj8tjgfXNlRuxAYdI9QDyeIobzrQWJbkWkYWf/GiPocTFt9TkGySod+RlLFqo09+Wth4fKcCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T09:25:50.283094Z","bundle_sha256":"965a502fe3d385a0a1d161298830ae0268df4e3c1eb46279d314fd14846bd675"}}