{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:3OTCTVFKNG36FARFD6MCQGGR6Q","short_pith_number":"pith:3OTCTVFK","schema_version":"1.0","canonical_sha256":"dba629d4aa69b7e282251f982818d1f4223e70f195eac0bd3615c10161b8a8b0","source":{"kind":"arxiv","id":"1805.05334","version":2},"attestation_state":"computed","paper":{"title":"Gravitational waves from supermassive black hole binaries in ultra-luminous infrared galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Kohei Ichikawa, Kohei Inayoshi, Zoltan Haiman","submitted_at":"2018-05-14T18:00:00Z","abstract_excerpt":"Gravitational waves (GWs) in the nano-hertz band are great tools for understanding the cosmological evolution of supermassive black holes (SMBHs) in galactic nuclei. We consider SMBH binaries in high-$z$ ultra-luminous infrared galaxies (ULIRGs) as sources of a stochastic GW background (GWB). ULIRGs are likely associated with gas-rich galaxy mergers containing SMBHs that possibly occur at most once in the life of galaxies, unlike multiple dry mergers at low redshift. Adopting a well-established sample of ULIRGs, we study the properties of the GWB due to coalescing binary SMBHs in these galaxie"},"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":"1805.05334","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-05-14T18:00:00Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"ba9514aebc03139e1377f6668eca49653c1990fcee651aa671df3c5f125f358d","abstract_canon_sha256":"bff569d1b16e983bd84500ce62e9d80813e0af490772e480e9db718beaff6100"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:38.957493Z","signature_b64":"Tc8T6Sa5+jv17xTrzJNLcggEaoIRRWNTJ6WM5ZVUZQz2F8Bx+gg1RiXgQeKJchnL/8r0ZZEzQurqRLodJAvpCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dba629d4aa69b7e282251f982818d1f4223e70f195eac0bd3615c10161b8a8b0","last_reissued_at":"2026-05-18T00:05:38.956929Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:38.956929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational waves from supermassive black hole binaries in ultra-luminous infrared galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Kohei Ichikawa, Kohei Inayoshi, Zoltan Haiman","submitted_at":"2018-05-14T18:00:00Z","abstract_excerpt":"Gravitational waves (GWs) in the nano-hertz band are great tools for understanding the cosmological evolution of supermassive black holes (SMBHs) in galactic nuclei. We consider SMBH binaries in high-$z$ ultra-luminous infrared galaxies (ULIRGs) as sources of a stochastic GW background (GWB). ULIRGs are likely associated with gas-rich galaxy mergers containing SMBHs that possibly occur at most once in the life of galaxies, unlike multiple dry mergers at low redshift. Adopting a well-established sample of ULIRGs, we study the properties of the GWB due to coalescing binary SMBHs in these galaxie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05334","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":"1805.05334","created_at":"2026-05-18T00:05:38.957027+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.05334v2","created_at":"2026-05-18T00:05:38.957027+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05334","created_at":"2026-05-18T00:05:38.957027+00:00"},{"alias_kind":"pith_short_12","alias_value":"3OTCTVFKNG36","created_at":"2026-05-18T12:32:02.567920+00:00"},{"alias_kind":"pith_short_16","alias_value":"3OTCTVFKNG36FARF","created_at":"2026-05-18T12:32:02.567920+00:00"},{"alias_kind":"pith_short_8","alias_value":"3OTCTVFK","created_at":"2026-05-18T12:32:02.567920+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/3OTCTVFKNG36FARFD6MCQGGR6Q","json":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q.json","graph_json":"https://pith.science/api/pith-number/3OTCTVFKNG36FARFD6MCQGGR6Q/graph.json","events_json":"https://pith.science/api/pith-number/3OTCTVFKNG36FARFD6MCQGGR6Q/events.json","paper":"https://pith.science/paper/3OTCTVFK"},"agent_actions":{"view_html":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q","download_json":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q.json","view_paper":"https://pith.science/paper/3OTCTVFK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.05334&json=true","fetch_graph":"https://pith.science/api/pith-number/3OTCTVFKNG36FARFD6MCQGGR6Q/graph.json","fetch_events":"https://pith.science/api/pith-number/3OTCTVFKNG36FARFD6MCQGGR6Q/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q/action/storage_attestation","attest_author":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q/action/author_attestation","sign_citation":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q/action/citation_signature","submit_replication":"https://pith.science/pith/3OTCTVFKNG36FARFD6MCQGGR6Q/action/replication_record"}},"created_at":"2026-05-18T00:05:38.957027+00:00","updated_at":"2026-05-18T00:05:38.957027+00:00"}