{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:ET4SZAOHP74M76USLZQDPZYL2E","short_pith_number":"pith:ET4SZAOH","schema_version":"1.0","canonical_sha256":"24f92c81c77ff8cffa925e6037e70bd13f6afdcec6e2b213771c973e5698cd2e","source":{"kind":"arxiv","id":"2312.02983","version":2},"attestation_state":"computed","paper":{"title":"Probing supermassive black hole seed scenarios with gravitational wave measurements","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"John Ellis, Juan Urrutia, Malcolm Fairbairn, Ville Vaskonen","submitted_at":"2023-12-05T18:59:59Z","abstract_excerpt":"The process whereby the supermassive black holes populating the centers of galaxies have been assembled remains to be established, with the relative importance of seeds provided by collapsed Population-III stars, black holes formed in nuclear star clusters via repeated mergers, or direct collapses of protogalactic disks yet to be determined. In this paper we study the prospects for casting light on this issue by future measurements of gravitational waves emitted during the inspirals and mergers of pairs of intermediate-mass black holes, discussing in particular the roles of prospective measure"},"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":"2312.02983","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-12-05T18:59:59Z","cross_cats_sorted":["astro-ph.HE","gr-qc"],"title_canon_sha256":"5cc0df7dee0e5a5ab461b4b9e3ffdd5449e0beba4146c588183d5399401d5666","abstract_canon_sha256":"7fad090e7f4b86d7615d01a3b5f2cb6477f924844ab88d639284115722adeff0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:56:57.254456Z","signature_b64":"iqu/FYQQEGKQUr5Kragi9LblWQvuiaLNghbgHc7p5ijIcetFphmg/bPEtz2D1Wp5099/RJi2ZTmAQ6lHjcwoAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24f92c81c77ff8cffa925e6037e70bd13f6afdcec6e2b213771c973e5698cd2e","last_reissued_at":"2026-07-05T07:56:57.253987Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:56:57.253987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing supermassive black hole seed scenarios with gravitational wave measurements","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"John Ellis, Juan Urrutia, Malcolm Fairbairn, Ville Vaskonen","submitted_at":"2023-12-05T18:59:59Z","abstract_excerpt":"The process whereby the supermassive black holes populating the centers of galaxies have been assembled remains to be established, with the relative importance of seeds provided by collapsed Population-III stars, black holes formed in nuclear star clusters via repeated mergers, or direct collapses of protogalactic disks yet to be determined. In this paper we study the prospects for casting light on this issue by future measurements of gravitational waves emitted during the inspirals and mergers of pairs of intermediate-mass black holes, discussing in particular the roles of prospective measure"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.02983","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/2312.02983/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":"2312.02983","created_at":"2026-07-05T07:56:57.254045+00:00"},{"alias_kind":"arxiv_version","alias_value":"2312.02983v2","created_at":"2026-07-05T07:56:57.254045+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.02983","created_at":"2026-07-05T07:56:57.254045+00:00"},{"alias_kind":"pith_short_12","alias_value":"ET4SZAOHP74M","created_at":"2026-07-05T07:56:57.254045+00:00"},{"alias_kind":"pith_short_16","alias_value":"ET4SZAOHP74M76US","created_at":"2026-07-05T07:56:57.254045+00:00"},{"alias_kind":"pith_short_8","alias_value":"ET4SZAOH","created_at":"2026-07-05T07:56:57.254045+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2508.03491","citing_title":"AION-10: Technical Design Report for a 10m Atom Interferometer in Oxford","ref_index":10,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E","json":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E.json","graph_json":"https://pith.science/api/pith-number/ET4SZAOHP74M76USLZQDPZYL2E/graph.json","events_json":"https://pith.science/api/pith-number/ET4SZAOHP74M76USLZQDPZYL2E/events.json","paper":"https://pith.science/paper/ET4SZAOH"},"agent_actions":{"view_html":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E","download_json":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E.json","view_paper":"https://pith.science/paper/ET4SZAOH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2312.02983&json=true","fetch_graph":"https://pith.science/api/pith-number/ET4SZAOHP74M76USLZQDPZYL2E/graph.json","fetch_events":"https://pith.science/api/pith-number/ET4SZAOHP74M76USLZQDPZYL2E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E/action/storage_attestation","attest_author":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E/action/author_attestation","sign_citation":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E/action/citation_signature","submit_replication":"https://pith.science/pith/ET4SZAOHP74M76USLZQDPZYL2E/action/replication_record"}},"created_at":"2026-07-05T07:56:57.254045+00:00","updated_at":"2026-07-05T07:56:57.254045+00:00"}