{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:O4WBL4OEHIDM452LHSTNHP6FKS","short_pith_number":"pith:O4WBL4OE","schema_version":"1.0","canonical_sha256":"772c15f1c43a06ce774b3ca6d3bfc5549d9a15a7f3d5ebaf9c2d815baee53894","source":{"kind":"arxiv","id":"1912.06646","version":2},"attestation_state":"computed","paper":{"title":"Black Hole Growth and Feedback in Isolated Romulus25 Dwarf Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alyson Brooks, Anna Wright, Jillian Bellovary, Michael Tremmel, Rachel S. Somerville, Ray Sharma, Thomas Quinn","submitted_at":"2019-12-13T18:51:50Z","abstract_excerpt":"We investigate the effects of massive black hole growth on the structural evolution of dwarf galaxies within the Romulus25 cosmological hydrodynamical simulation. We study a sample of 228 central, isolated dwarf galaxies with stellar masses $M_{star} < 10^{10} M_\\odot$ and a central BH. We find that the local $M_{BH} - M_{star}$ relation exhibits a high degree of scatter below $M_{star} < 10^{10} M_\\odot$, which we use to classify BHs as overmassive or undermassive relative to their host $M_{star}$. Overmassive BHs grow through a mixture of BH mergers and relatively high average accretion rate"},"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":"1912.06646","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-13T18:51:50Z","cross_cats_sorted":[],"title_canon_sha256":"ee80e53cd465e626cdb6b0b0893ab00b98339ddab80d8ee86f546f3be8093c3a","abstract_canon_sha256":"f18e8aaf638e88fa0d370484cbbbc24cff3c79338352948280cf2d20a01fc9d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:17:28.057761Z","signature_b64":"pXEQNY1kx220cefWB2d6zlRas1+bJSNofSQ/89/cTfLBB2UJV/AT+F4r6G/9+gH8GkNPaaSa3Z63pmd4TRNIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"772c15f1c43a06ce774b3ca6d3bfc5549d9a15a7f3d5ebaf9c2d815baee53894","last_reissued_at":"2026-07-05T03:17:28.057379Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:17:28.057379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Black Hole Growth and Feedback in Isolated Romulus25 Dwarf Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alyson Brooks, Anna Wright, Jillian Bellovary, Michael Tremmel, Rachel S. Somerville, Ray Sharma, Thomas Quinn","submitted_at":"2019-12-13T18:51:50Z","abstract_excerpt":"We investigate the effects of massive black hole growth on the structural evolution of dwarf galaxies within the Romulus25 cosmological hydrodynamical simulation. We study a sample of 228 central, isolated dwarf galaxies with stellar masses $M_{star} < 10^{10} M_\\odot$ and a central BH. We find that the local $M_{BH} - M_{star}$ relation exhibits a high degree of scatter below $M_{star} < 10^{10} M_\\odot$, which we use to classify BHs as overmassive or undermassive relative to their host $M_{star}$. Overmassive BHs grow through a mixture of BH mergers and relatively high average accretion rate"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.06646","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/1912.06646/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":"1912.06646","created_at":"2026-07-05T03:17:28.057446+00:00"},{"alias_kind":"arxiv_version","alias_value":"1912.06646v2","created_at":"2026-07-05T03:17:28.057446+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.06646","created_at":"2026-07-05T03:17:28.057446+00:00"},{"alias_kind":"pith_short_12","alias_value":"O4WBL4OEHIDM","created_at":"2026-07-05T03:17:28.057446+00:00"},{"alias_kind":"pith_short_16","alias_value":"O4WBL4OEHIDM452L","created_at":"2026-07-05T03:17:28.057446+00:00"},{"alias_kind":"pith_short_8","alias_value":"O4WBL4OE","created_at":"2026-07-05T03:17:28.057446+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2311.01300","citing_title":"Waveform Modelling for the Laser Interferometer Space Antenna","ref_index":15,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS","json":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS.json","graph_json":"https://pith.science/api/pith-number/O4WBL4OEHIDM452LHSTNHP6FKS/graph.json","events_json":"https://pith.science/api/pith-number/O4WBL4OEHIDM452LHSTNHP6FKS/events.json","paper":"https://pith.science/paper/O4WBL4OE"},"agent_actions":{"view_html":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS","download_json":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS.json","view_paper":"https://pith.science/paper/O4WBL4OE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1912.06646&json=true","fetch_graph":"https://pith.science/api/pith-number/O4WBL4OEHIDM452LHSTNHP6FKS/graph.json","fetch_events":"https://pith.science/api/pith-number/O4WBL4OEHIDM452LHSTNHP6FKS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS/action/storage_attestation","attest_author":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS/action/author_attestation","sign_citation":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS/action/citation_signature","submit_replication":"https://pith.science/pith/O4WBL4OEHIDM452LHSTNHP6FKS/action/replication_record"}},"created_at":"2026-07-05T03:17:28.057446+00:00","updated_at":"2026-07-05T03:17:28.057446+00:00"}