{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:F2PSHFHO4MP3GDUFJLTGJSU3MP","short_pith_number":"pith:F2PSHFHO","schema_version":"1.0","canonical_sha256":"2e9f2394eee31fb30e854ae664ca9b63ebd9662974f6265bf5134cdb5a8796a9","source":{"kind":"arxiv","id":"2008.01890","version":3},"attestation_state":"computed","paper":{"title":"Merger rate density of Population III binary black holes below, above, and in the pair-instability mass gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Alessandro A. Trani, Ataru Tanikawa, Hajime Susa, Takashi Yoshida, Tomoya Kinugawa","submitted_at":"2020-08-05T00:36:40Z","abstract_excerpt":"We present the merger rate density of Population (Pop.) III binary black holes (BHs) by means of a widely-used binary population synthesis code BSE with extensions to very massive and extreme metal-poor stars. We consider not only low-mass BHs (lBHs: $5-50 M_\\odot$) but also high-mass BHs (hBHs: $130-200 M_\\odot$), where lBHs and hBHs are below and above the pair-instability mass gap ($50-130 M_\\odot$), respectively. Pop. III BH-BHs can be categorized into three subpopulations: BH-BHs without hBHs (hBH0s: $m_{\\rm tot} \\lesssim 100 M_\\odot$), with one hBH (hBH1s: $m_{\\rm tot} \\sim 130-260 M_\\od"},"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":"2008.01890","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-05T00:36:40Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"5bc7ef25a1478edfc8182516f7a432648cca40834d17308733da3b01128a3d21","abstract_canon_sha256":"d7aa25144d32375afdb46f8f881e279a07938fe666d022ba0ab19d59b98d259d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:26:49.462071Z","signature_b64":"xC45HfywFhR8pTnFu8TIz5PUgPGs0osrhA6WkvX0+Gol9l2XhNK71qJhSioEjHH/Ru7iayjfalPI8TvATBRUAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e9f2394eee31fb30e854ae664ca9b63ebd9662974f6265bf5134cdb5a8796a9","last_reissued_at":"2026-07-05T02:26:49.461658Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:26:49.461658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Merger rate density of Population III binary black holes below, above, and in the pair-instability mass gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Alessandro A. Trani, Ataru Tanikawa, Hajime Susa, Takashi Yoshida, Tomoya Kinugawa","submitted_at":"2020-08-05T00:36:40Z","abstract_excerpt":"We present the merger rate density of Population (Pop.) III binary black holes (BHs) by means of a widely-used binary population synthesis code BSE with extensions to very massive and extreme metal-poor stars. We consider not only low-mass BHs (lBHs: $5-50 M_\\odot$) but also high-mass BHs (hBHs: $130-200 M_\\odot$), where lBHs and hBHs are below and above the pair-instability mass gap ($50-130 M_\\odot$), respectively. Pop. III BH-BHs can be categorized into three subpopulations: BH-BHs without hBHs (hBH0s: $m_{\\rm tot} \\lesssim 100 M_\\odot$), with one hBH (hBH1s: $m_{\\rm tot} \\sim 130-260 M_\\od"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.01890","kind":"arxiv","version":3},"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/2008.01890/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":"2008.01890","created_at":"2026-07-05T02:26:49.461718+00:00"},{"alias_kind":"arxiv_version","alias_value":"2008.01890v3","created_at":"2026-07-05T02:26:49.461718+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.01890","created_at":"2026-07-05T02:26:49.461718+00:00"},{"alias_kind":"pith_short_12","alias_value":"F2PSHFHO4MP3","created_at":"2026-07-05T02:26:49.461718+00:00"},{"alias_kind":"pith_short_16","alias_value":"F2PSHFHO4MP3GDUF","created_at":"2026-07-05T02:26:49.461718+00:00"},{"alias_kind":"pith_short_8","alias_value":"F2PSHFHO","created_at":"2026-07-05T02:26:49.461718+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/F2PSHFHO4MP3GDUFJLTGJSU3MP","json":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP.json","graph_json":"https://pith.science/api/pith-number/F2PSHFHO4MP3GDUFJLTGJSU3MP/graph.json","events_json":"https://pith.science/api/pith-number/F2PSHFHO4MP3GDUFJLTGJSU3MP/events.json","paper":"https://pith.science/paper/F2PSHFHO"},"agent_actions":{"view_html":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP","download_json":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP.json","view_paper":"https://pith.science/paper/F2PSHFHO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2008.01890&json=true","fetch_graph":"https://pith.science/api/pith-number/F2PSHFHO4MP3GDUFJLTGJSU3MP/graph.json","fetch_events":"https://pith.science/api/pith-number/F2PSHFHO4MP3GDUFJLTGJSU3MP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP/action/storage_attestation","attest_author":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP/action/author_attestation","sign_citation":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP/action/citation_signature","submit_replication":"https://pith.science/pith/F2PSHFHO4MP3GDUFJLTGJSU3MP/action/replication_record"}},"created_at":"2026-07-05T02:26:49.461718+00:00","updated_at":"2026-07-05T02:26:49.461718+00:00"}