{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:664ZT6FICCK4HABXBXRVM5FOKK","short_pith_number":"pith:664ZT6FI","schema_version":"1.0","canonical_sha256":"f7b999f8a81095c380370de35674ae52a7a05c10e9de2aea2337527dfe96b76f","source":{"kind":"arxiv","id":"1608.08440","version":1},"attestation_state":"computed","paper":{"title":"Optical polarization of high-energy BL Lac objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"D. Blinov, E. Angelakis, E. Lindfors, G. V. Panopoulou, I. Liodakis, I. Myserlis, K. Nilsson, S. Kiehlmann, T. Hovatta, T. Pursimo, V. Fallah Ramazani, V. Pavlidou","submitted_at":"2016-08-30T13:22:41Z","abstract_excerpt":"We investigate the optical polarization properties of high-energy BL Lac objects using data from the RoboPol blazar monitoring program and the Nordic Optical Telescope. We wish to understand if there are differences in the BL Lac objects that are detected with the current-generation TeV instruments compared to those that have not yet been detected. The mean polarization fraction of the TeV-detected BL Lacs is 5% while the non-TeV sources show a higher mean polarization fraction of 7%. This difference in polarization fraction disappears when the dilution by the unpolarized light of the host gal"},"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":"1608.08440","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-08-30T13:22:41Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"92e3193edb3e9fc4a9761157f4585675ad498e9555c2a4932c9f24b2bdcfb5f3","abstract_canon_sha256":"71115a5e01ea849321dd63dd9b1a5f7bfd42003b45f87c2144fcd81ec5885fe8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:41.875139Z","signature_b64":"2xKEgSgLuoanDYXjGzoG1dAw3ExYhJXolLmvD8Uz05Dg5wiD4OT4HirfqSgwg5jqd4/p3+ShOnhQ+CzxXzJmDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7b999f8a81095c380370de35674ae52a7a05c10e9de2aea2337527dfe96b76f","last_reissued_at":"2026-05-18T00:55:41.874651Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:41.874651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical polarization of high-energy BL Lac objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"D. Blinov, E. Angelakis, E. Lindfors, G. V. Panopoulou, I. Liodakis, I. Myserlis, K. Nilsson, S. Kiehlmann, T. Hovatta, T. Pursimo, V. Fallah Ramazani, V. Pavlidou","submitted_at":"2016-08-30T13:22:41Z","abstract_excerpt":"We investigate the optical polarization properties of high-energy BL Lac objects using data from the RoboPol blazar monitoring program and the Nordic Optical Telescope. We wish to understand if there are differences in the BL Lac objects that are detected with the current-generation TeV instruments compared to those that have not yet been detected. The mean polarization fraction of the TeV-detected BL Lacs is 5% while the non-TeV sources show a higher mean polarization fraction of 7%. This difference in polarization fraction disappears when the dilution by the unpolarized light of the host gal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.08440","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":"1608.08440","created_at":"2026-05-18T00:55:41.874724+00:00"},{"alias_kind":"arxiv_version","alias_value":"1608.08440v1","created_at":"2026-05-18T00:55:41.874724+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.08440","created_at":"2026-05-18T00:55:41.874724+00:00"},{"alias_kind":"pith_short_12","alias_value":"664ZT6FICCK4","created_at":"2026-05-18T12:30:01.593930+00:00"},{"alias_kind":"pith_short_16","alias_value":"664ZT6FICCK4HABX","created_at":"2026-05-18T12:30:01.593930+00:00"},{"alias_kind":"pith_short_8","alias_value":"664ZT6FI","created_at":"2026-05-18T12:30:01.593930+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.12602","citing_title":"Tracking down the broadband polarimetric properties of PG 1553+113","ref_index":222,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK","json":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK.json","graph_json":"https://pith.science/api/pith-number/664ZT6FICCK4HABXBXRVM5FOKK/graph.json","events_json":"https://pith.science/api/pith-number/664ZT6FICCK4HABXBXRVM5FOKK/events.json","paper":"https://pith.science/paper/664ZT6FI"},"agent_actions":{"view_html":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK","download_json":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK.json","view_paper":"https://pith.science/paper/664ZT6FI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1608.08440&json=true","fetch_graph":"https://pith.science/api/pith-number/664ZT6FICCK4HABXBXRVM5FOKK/graph.json","fetch_events":"https://pith.science/api/pith-number/664ZT6FICCK4HABXBXRVM5FOKK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK/action/storage_attestation","attest_author":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK/action/author_attestation","sign_citation":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK/action/citation_signature","submit_replication":"https://pith.science/pith/664ZT6FICCK4HABXBXRVM5FOKK/action/replication_record"}},"created_at":"2026-05-18T00:55:41.874724+00:00","updated_at":"2026-05-18T00:55:41.874724+00:00"}