{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:2I7PHKL3OGEC5LISEXF6KGVUIR","short_pith_number":"pith:2I7PHKL3","schema_version":"1.0","canonical_sha256":"d23ef3a97b71882ead1225cbe51ab4446f7cc72ca7f725339a65b15e81a7bda5","source":{"kind":"arxiv","id":"1901.06998","version":1},"attestation_state":"computed","paper":{"title":"TXS 0506+056, the first cosmic neutrino source, is not a BL Lac","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","hep-ex","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"E. Resconi, F. Oikonomou, M. Petropoulou, P. Giommi, P. Padovani","submitted_at":"2019-01-21T16:58:48Z","abstract_excerpt":"We present evidence that TXS 0506+056, the first plausible non-stellar neutrino source, despite appearances, is not a blazar of the BL Lac type but is instead a masquerading BL Lac, i.e., intrinsically a flat-spectrum radio quasar with hidden broad lines and a standard accretion disk. This re-classification is based on: (1) its radio and O II luminosities; (2) its emission line ratios; (3) its Eddington ratio. We also point out that the synchrotron peak frequency of TXS 0506+056 is more than two orders of magnitude larger than expected by the so-called \"blazar sequence\", a scenario which has b"},"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":"1901.06998","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-01-21T16:58:48Z","cross_cats_sorted":["astro-ph.GA","hep-ex","hep-ph"],"title_canon_sha256":"68a877492c60495c19a042b7525d43a401359f9a4feaa0a30f93a5859fd07835","abstract_canon_sha256":"757acff1847f700cece6ecaa29b3fd7dcb54ec481c8398ad074f55adec9c6695"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:16.776114Z","signature_b64":"Bl/GozYqSOlrLgNwzhO0PF+gP+X2OEiPxZ4pnl6TNF6bSgiocWG6EY+FH0gJ0pLtXFnd9aQB5ws7OSdk2N4uDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d23ef3a97b71882ead1225cbe51ab4446f7cc72ca7f725339a65b15e81a7bda5","last_reissued_at":"2026-05-17T23:55:16.775616Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:16.775616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"TXS 0506+056, the first cosmic neutrino source, is not a BL Lac","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","hep-ex","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"E. Resconi, F. Oikonomou, M. Petropoulou, P. Giommi, P. Padovani","submitted_at":"2019-01-21T16:58:48Z","abstract_excerpt":"We present evidence that TXS 0506+056, the first plausible non-stellar neutrino source, despite appearances, is not a blazar of the BL Lac type but is instead a masquerading BL Lac, i.e., intrinsically a flat-spectrum radio quasar with hidden broad lines and a standard accretion disk. This re-classification is based on: (1) its radio and O II luminosities; (2) its emission line ratios; (3) its Eddington ratio. We also point out that the synchrotron peak frequency of TXS 0506+056 is more than two orders of magnitude larger than expected by the so-called \"blazar sequence\", a scenario which has b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06998","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":"1901.06998","created_at":"2026-05-17T23:55:16.775686+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.06998v1","created_at":"2026-05-17T23:55:16.775686+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06998","created_at":"2026-05-17T23:55:16.775686+00:00"},{"alias_kind":"pith_short_12","alias_value":"2I7PHKL3OGEC","created_at":"2026-05-18T12:33:07.085635+00:00"},{"alias_kind":"pith_short_16","alias_value":"2I7PHKL3OGEC5LIS","created_at":"2026-05-18T12:33:07.085635+00:00"},{"alias_kind":"pith_short_8","alias_value":"2I7PHKL3","created_at":"2026-05-18T12:33:07.085635+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.17397","citing_title":"Exploring the Transitional Parameter Space of Blazars using Gamma-ray and X-ray Population Diagnostics","ref_index":51,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR","json":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR.json","graph_json":"https://pith.science/api/pith-number/2I7PHKL3OGEC5LISEXF6KGVUIR/graph.json","events_json":"https://pith.science/api/pith-number/2I7PHKL3OGEC5LISEXF6KGVUIR/events.json","paper":"https://pith.science/paper/2I7PHKL3"},"agent_actions":{"view_html":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR","download_json":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR.json","view_paper":"https://pith.science/paper/2I7PHKL3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.06998&json=true","fetch_graph":"https://pith.science/api/pith-number/2I7PHKL3OGEC5LISEXF6KGVUIR/graph.json","fetch_events":"https://pith.science/api/pith-number/2I7PHKL3OGEC5LISEXF6KGVUIR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR/action/storage_attestation","attest_author":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR/action/author_attestation","sign_citation":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR/action/citation_signature","submit_replication":"https://pith.science/pith/2I7PHKL3OGEC5LISEXF6KGVUIR/action/replication_record"}},"created_at":"2026-05-17T23:55:16.775686+00:00","updated_at":"2026-05-17T23:55:16.775686+00:00"}