{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:5KFEI7UKZYL7NADSPOPBOZCXYX","short_pith_number":"pith:5KFEI7UK","schema_version":"1.0","canonical_sha256":"ea8a447e8ace17f680727b9e176457c5db945ac85f5c3bc1ede0b1ce12fb0a37","source":{"kind":"arxiv","id":"1902.03328","version":1},"attestation_state":"computed","paper":{"title":"Sub-Eddington super-massive black hole activity in Fornax early type galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Brendan Miller, Edmund Hodges-Kluck, Elena Gallo, Laura Ferrarese, Nathan Lee, Patrick C\\^ot\\'e, Rich Plotkin, Tommaso Treu, Vivienne Baldassare","submitted_at":"2019-02-08T23:48:18Z","abstract_excerpt":"We characterize the incidence and intensity of low-level super-massive black hole activity within the Fornax cluster, through X-ray observations of the nuclei of 29 quiescent early-type galaxies. Using the \\textit{Chandra X-ray Telescope}, we target 17 galaxies from the HST Fornax Cluster Survey, down to a uniform (3$\\sigma$) limiting X-ray luminosity threshold of $5\\cdot10^{38}$ergs$^{-1}$, which we combine with deeper, archival observations for an additional 12 galaxies. A nuclear X-ray point-source is detected in 11 out of 29 targets. After accounting for the low mass X-ray binary contamina"},"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":"1902.03328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-08T23:48:18Z","cross_cats_sorted":[],"title_canon_sha256":"78585e9eaaa205a9a443403f76cfad41e92bac0fbe9d32e30498dc063a17d209","abstract_canon_sha256":"8a63e98469f5651cd3e02bc77ee423ab3b1f55a05db4bf87c7c72b200539225e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:39.233229Z","signature_b64":"X6Q8MPC8zHP/KJ7kHEZhWojXJ3kRgWWJF/akriwEQRhxK2nQt8e4FCpnB1hPVurvnic3be7eRUscfelRwWy8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea8a447e8ace17f680727b9e176457c5db945ac85f5c3bc1ede0b1ce12fb0a37","last_reissued_at":"2026-05-17T23:49:39.232619Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:39.232619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sub-Eddington super-massive black hole activity in Fornax early type galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Brendan Miller, Edmund Hodges-Kluck, Elena Gallo, Laura Ferrarese, Nathan Lee, Patrick C\\^ot\\'e, Rich Plotkin, Tommaso Treu, Vivienne Baldassare","submitted_at":"2019-02-08T23:48:18Z","abstract_excerpt":"We characterize the incidence and intensity of low-level super-massive black hole activity within the Fornax cluster, through X-ray observations of the nuclei of 29 quiescent early-type galaxies. Using the \\textit{Chandra X-ray Telescope}, we target 17 galaxies from the HST Fornax Cluster Survey, down to a uniform (3$\\sigma$) limiting X-ray luminosity threshold of $5\\cdot10^{38}$ergs$^{-1}$, which we combine with deeper, archival observations for an additional 12 galaxies. A nuclear X-ray point-source is detected in 11 out of 29 targets. After accounting for the low mass X-ray binary contamina"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03328","kind":"arxiv","version":1},"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":"1902.03328","created_at":"2026-05-17T23:49:39.232732+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.03328v1","created_at":"2026-05-17T23:49:39.232732+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.03328","created_at":"2026-05-17T23:49:39.232732+00:00"},{"alias_kind":"pith_short_12","alias_value":"5KFEI7UKZYL7","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_16","alias_value":"5KFEI7UKZYL7NADS","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_8","alias_value":"5KFEI7UK","created_at":"2026-05-18T12:33:10.108867+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/5KFEI7UKZYL7NADSPOPBOZCXYX","json":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX.json","graph_json":"https://pith.science/api/pith-number/5KFEI7UKZYL7NADSPOPBOZCXYX/graph.json","events_json":"https://pith.science/api/pith-number/5KFEI7UKZYL7NADSPOPBOZCXYX/events.json","paper":"https://pith.science/paper/5KFEI7UK"},"agent_actions":{"view_html":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX","download_json":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX.json","view_paper":"https://pith.science/paper/5KFEI7UK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.03328&json=true","fetch_graph":"https://pith.science/api/pith-number/5KFEI7UKZYL7NADSPOPBOZCXYX/graph.json","fetch_events":"https://pith.science/api/pith-number/5KFEI7UKZYL7NADSPOPBOZCXYX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX/action/storage_attestation","attest_author":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX/action/author_attestation","sign_citation":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX/action/citation_signature","submit_replication":"https://pith.science/pith/5KFEI7UKZYL7NADSPOPBOZCXYX/action/replication_record"}},"created_at":"2026-05-17T23:49:39.232732+00:00","updated_at":"2026-05-17T23:49:39.232732+00:00"}