{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:ULTZKS6YONR2KQ3UGWGQPIRAZL","short_pith_number":"pith:ULTZKS6Y","schema_version":"1.0","canonical_sha256":"a2e7954bd87363a54374358d07a220cac4c529234d34a14d3b3a63e61060852d","source":{"kind":"arxiv","id":"1907.03726","version":1},"attestation_state":"computed","paper":{"title":"Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Mingo, G. Gurkan, H. J. A. Rottgering, I. Prandoni, J. H. Croston, J. Ineson, J. Sabater, K. J. Duncan, L. K. Morabito, M. Bondi, M. Brienza, M. J. Hardcastle, P. N. Best, R. Morganti, S. Mooney, T. W. Shimwell, V. H. Mahatma, W. L. Williams","submitted_at":"2019-07-08T17:14:46Z","abstract_excerpt":"The relative positions of the high and low surface brightness regions of radio-loud active galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their luminosity. We revisit this canonical relationship with a sample of 5805 extended radio-loud AGN from the LOFAR Two-Metre Sky Survey (LoTSS), compiling the most complete dataset of radio-galaxy morphological information obtained to date. We demonstrate that, for this sample, radio luminosity does *not* reliably predict whether a source is edge-brightened (FRII) or centre-brightened (FRI). We highlight a large populati"},"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":"1907.03726","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-08T17:14:46Z","cross_cats_sorted":[],"title_canon_sha256":"25234b2e20d130cfdc638513cc93ec3b61fc9b2399c37197673df5f7fc692828","abstract_canon_sha256":"de6ee34e01376989eb840bb843a48ab9573979c33620745617e9d77ac464614e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:38.527214Z","signature_b64":"Q9yr9RHfEY+Na/zRy+/d7goAbWbtWygRFU5uYQV3Hu3JfOk1nQp/c3LBC9CmWQj+Nq0Guzp6sL5Vun8DfhDyAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2e7954bd87363a54374358d07a220cac4c529234d34a14d3b3a63e61060852d","last_reissued_at":"2026-05-17T23:40:38.526744Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:38.526744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Mingo, G. Gurkan, H. J. A. Rottgering, I. Prandoni, J. H. Croston, J. Ineson, J. Sabater, K. J. Duncan, L. K. Morabito, M. Bondi, M. Brienza, M. J. Hardcastle, P. N. Best, R. Morganti, S. Mooney, T. W. Shimwell, V. H. Mahatma, W. L. Williams","submitted_at":"2019-07-08T17:14:46Z","abstract_excerpt":"The relative positions of the high and low surface brightness regions of radio-loud active galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their luminosity. We revisit this canonical relationship with a sample of 5805 extended radio-loud AGN from the LOFAR Two-Metre Sky Survey (LoTSS), compiling the most complete dataset of radio-galaxy morphological information obtained to date. We demonstrate that, for this sample, radio luminosity does *not* reliably predict whether a source is edge-brightened (FRII) or centre-brightened (FRI). We highlight a large populati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03726","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":"1907.03726","created_at":"2026-05-17T23:40:38.526810+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.03726v1","created_at":"2026-05-17T23:40:38.526810+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03726","created_at":"2026-05-17T23:40:38.526810+00:00"},{"alias_kind":"pith_short_12","alias_value":"ULTZKS6YONR2","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"ULTZKS6YONR2KQ3U","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"ULTZKS6Y","created_at":"2026-05-18T12:33:30.264802+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/ULTZKS6YONR2KQ3UGWGQPIRAZL","json":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL.json","graph_json":"https://pith.science/api/pith-number/ULTZKS6YONR2KQ3UGWGQPIRAZL/graph.json","events_json":"https://pith.science/api/pith-number/ULTZKS6YONR2KQ3UGWGQPIRAZL/events.json","paper":"https://pith.science/paper/ULTZKS6Y"},"agent_actions":{"view_html":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL","download_json":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL.json","view_paper":"https://pith.science/paper/ULTZKS6Y","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.03726&json=true","fetch_graph":"https://pith.science/api/pith-number/ULTZKS6YONR2KQ3UGWGQPIRAZL/graph.json","fetch_events":"https://pith.science/api/pith-number/ULTZKS6YONR2KQ3UGWGQPIRAZL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL/action/storage_attestation","attest_author":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL/action/author_attestation","sign_citation":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL/action/citation_signature","submit_replication":"https://pith.science/pith/ULTZKS6YONR2KQ3UGWGQPIRAZL/action/replication_record"}},"created_at":"2026-05-17T23:40:38.526810+00:00","updated_at":"2026-05-17T23:40:38.526810+00:00"}