{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:K5WPNHSS53ESYW55TCDVK3USIM","short_pith_number":"pith:K5WPNHSS","schema_version":"1.0","canonical_sha256":"576cf69e52eec92c5bbd9887556e924322f55796230a558962950bd47920b43e","source":{"kind":"arxiv","id":"2505.09219","version":2},"attestation_state":"computed","paper":{"title":"Probing Self-Interacting Dark Matter via Gravitational-Wave Background from Eccentric Supermassive Black Hole Mergers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"astro-ph.GA","authors_text":"Mu-Chun Chen, Yong Tang","submitted_at":"2025-05-14T08:40:19Z","abstract_excerpt":"The nature of dark matter is still mysterious despite various astronomical evidence. As a possible candidate, self-interacting dark matter (SIDM) can potentially resolve some issues appearing in cold dark matter paradigm. Here we investigate how SIDM around supermassive black holes (SMBH) in galaxy centers may form a density spike and imprint in the spectrum shape of stochastic gravitational-wave background from SMBH binaries (SMBHBs). Employing a refined dynamical friction formula and consistently evolving the orbital dynamics, we demonstrate that current pulsar timing arrays (PTAs) data is s"},"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":"2505.09219","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T08:40:19Z","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"title_canon_sha256":"defa9dc38bd7cf47b27d0aa9a055dd5a560795a3b45ff935c1b86aec91d42d3b","abstract_canon_sha256":"758717cca7b49b43857b89154aa7a46866120959b6a950ecb27c6d240aa67e6a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:03:26.532584Z","signature_b64":"1z6HO3RGBZp1y1ptT8N+jW1N6BkOmPOiKcMlv45ETMIZlMQO8ZkZH7piRo1e022iiwt0xU4dgzKInOTWV2ZwAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"576cf69e52eec92c5bbd9887556e924322f55796230a558962950bd47920b43e","last_reissued_at":"2026-07-05T12:03:26.532078Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:03:26.532078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing Self-Interacting Dark Matter via Gravitational-Wave Background from Eccentric Supermassive Black Hole Mergers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"astro-ph.GA","authors_text":"Mu-Chun Chen, Yong Tang","submitted_at":"2025-05-14T08:40:19Z","abstract_excerpt":"The nature of dark matter is still mysterious despite various astronomical evidence. As a possible candidate, self-interacting dark matter (SIDM) can potentially resolve some issues appearing in cold dark matter paradigm. Here we investigate how SIDM around supermassive black holes (SMBH) in galaxy centers may form a density spike and imprint in the spectrum shape of stochastic gravitational-wave background from SMBH binaries (SMBHBs). Employing a refined dynamical friction formula and consistently evolving the orbital dynamics, we demonstrate that current pulsar timing arrays (PTAs) data is s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.09219","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/2505.09219/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2505.09219","created_at":"2026-07-05T12:03:26.532138+00:00"},{"alias_kind":"arxiv_version","alias_value":"2505.09219v2","created_at":"2026-07-05T12:03:26.532138+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.09219","created_at":"2026-07-05T12:03:26.532138+00:00"},{"alias_kind":"pith_short_12","alias_value":"K5WPNHSS53ES","created_at":"2026-07-05T12:03:26.532138+00:00"},{"alias_kind":"pith_short_16","alias_value":"K5WPNHSS53ESYW55","created_at":"2026-07-05T12:03:26.532138+00:00"},{"alias_kind":"pith_short_8","alias_value":"K5WPNHSS","created_at":"2026-07-05T12:03:26.532138+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/K5WPNHSS53ESYW55TCDVK3USIM","json":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM.json","graph_json":"https://pith.science/api/pith-number/K5WPNHSS53ESYW55TCDVK3USIM/graph.json","events_json":"https://pith.science/api/pith-number/K5WPNHSS53ESYW55TCDVK3USIM/events.json","paper":"https://pith.science/paper/K5WPNHSS"},"agent_actions":{"view_html":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM","download_json":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM.json","view_paper":"https://pith.science/paper/K5WPNHSS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2505.09219&json=true","fetch_graph":"https://pith.science/api/pith-number/K5WPNHSS53ESYW55TCDVK3USIM/graph.json","fetch_events":"https://pith.science/api/pith-number/K5WPNHSS53ESYW55TCDVK3USIM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM/action/storage_attestation","attest_author":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM/action/author_attestation","sign_citation":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM/action/citation_signature","submit_replication":"https://pith.science/pith/K5WPNHSS53ESYW55TCDVK3USIM/action/replication_record"}},"created_at":"2026-07-05T12:03:26.532138+00:00","updated_at":"2026-07-05T12:03:26.532138+00:00"}