{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1996:NT3YM3HAQDGUKFCMRLSLW6CVAS","short_pith_number":"pith:NT3YM3HA","schema_version":"1.0","canonical_sha256":"6cf7866ce080cd45144c8ae4bb78550493862f3aab5db9cbdad0878b1a231eb3","source":{"kind":"arxiv","id":"astro-ph/9610093","version":1},"attestation_state":"computed","paper":{"title":"Are the X-ray Spectra of Flat-spectrum Radio Quasars and BL Lacertae Objects Different?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) SAX/SDC, 3) ((1) Dip. di Fisica, (3) Osservatorio Astronomico di Roma), ASI, Fabrizio Fiore (2, II Universita' di Roma, Paolo Giommi (2), Paolo Padovani (1), Roma","submitted_at":"1996-10-14T11:03:05Z","abstract_excerpt":"We study the X-ray spectra of 114 flat-spectrum radio quasars (FSRQ) using the hardness ratios as given in the WGA catalogue of ROSAT sources. This sample includes all WGA FSRQ with high-quality data and comprises about 20 per cent of presently known such objects, which makes this the largest FSRQ sample ever studied in the X-ray band. We find that FSRQ have a distribution of energy spectral indices ranging between 0 and 3 with a mean value alpha_x ~ 1. This is consistent with that of low-energy cutoff BL Lacs (LBL; alpha_x ~ 1.1), generally found in radio surveys, but significantly different "},"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":"astro-ph/9610093","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1996-10-14T11:03:05Z","cross_cats_sorted":[],"title_canon_sha256":"2e9852017f7c42c690a60c484a50983a20964c86390b18aa4e0d1c5cf2319c1e","abstract_canon_sha256":"47d7dee4359b904f0c82c1ac4b15afb6474a379167da5eb486d4402a9d728846"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:19.094539Z","signature_b64":"2YQYdPnZdLSrsNuW7cDo+KSrrL08SA720Ieq8+Ped6LaoQhd3c1lKGZOcgSQSxxf7ZGm1Dzvhlh85ziMW3okBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6cf7866ce080cd45144c8ae4bb78550493862f3aab5db9cbdad0878b1a231eb3","last_reissued_at":"2026-05-18T01:40:19.093944Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:19.093944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Are the X-ray Spectra of Flat-spectrum Radio Quasars and BL Lacertae Objects Different?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) SAX/SDC, 3) ((1) Dip. di Fisica, (3) Osservatorio Astronomico di Roma), ASI, Fabrizio Fiore (2, II Universita' di Roma, Paolo Giommi (2), Paolo Padovani (1), Roma","submitted_at":"1996-10-14T11:03:05Z","abstract_excerpt":"We study the X-ray spectra of 114 flat-spectrum radio quasars (FSRQ) using the hardness ratios as given in the WGA catalogue of ROSAT sources. This sample includes all WGA FSRQ with high-quality data and comprises about 20 per cent of presently known such objects, which makes this the largest FSRQ sample ever studied in the X-ray band. We find that FSRQ have a distribution of energy spectral indices ranging between 0 and 3 with a mean value alpha_x ~ 1. This is consistent with that of low-energy cutoff BL Lacs (LBL; alpha_x ~ 1.1), generally found in radio surveys, but significantly different "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9610093","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":"astro-ph/9610093","created_at":"2026-05-18T01:40:19.094045+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9610093v1","created_at":"2026-05-18T01:40:19.094045+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9610093","created_at":"2026-05-18T01:40:19.094045+00:00"},{"alias_kind":"pith_short_12","alias_value":"NT3YM3HAQDGU","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"NT3YM3HAQDGUKFCM","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"NT3YM3HA","created_at":"2026-05-18T12:25:48.327863+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/NT3YM3HAQDGUKFCMRLSLW6CVAS","json":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS.json","graph_json":"https://pith.science/api/pith-number/NT3YM3HAQDGUKFCMRLSLW6CVAS/graph.json","events_json":"https://pith.science/api/pith-number/NT3YM3HAQDGUKFCMRLSLW6CVAS/events.json","paper":"https://pith.science/paper/NT3YM3HA"},"agent_actions":{"view_html":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS","download_json":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS.json","view_paper":"https://pith.science/paper/NT3YM3HA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9610093&json=true","fetch_graph":"https://pith.science/api/pith-number/NT3YM3HAQDGUKFCMRLSLW6CVAS/graph.json","fetch_events":"https://pith.science/api/pith-number/NT3YM3HAQDGUKFCMRLSLW6CVAS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS/action/storage_attestation","attest_author":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS/action/author_attestation","sign_citation":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS/action/citation_signature","submit_replication":"https://pith.science/pith/NT3YM3HAQDGUKFCMRLSLW6CVAS/action/replication_record"}},"created_at":"2026-05-18T01:40:19.094045+00:00","updated_at":"2026-05-18T01:40:19.094045+00:00"}