{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GKE56A4AMZ5QGQDGSIIXTIOFOV","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"394346e79120dd8e3aa3d70e18acd4231fa99e06deaa21f54ea5e3796587cb7b","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-03-04T14:02:13Z","title_canon_sha256":"79889247efd87a63b6d7b7220e3021900e3fb460bbed202e5aba5a3bed844eba"},"schema_version":"1.0","source":{"id":"2403.02061","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.02061","created_at":"2026-07-05T09:08:11Z"},{"alias_kind":"arxiv_version","alias_value":"2403.02061v2","created_at":"2026-07-05T09:08:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.02061","created_at":"2026-07-05T09:08:11Z"},{"alias_kind":"pith_short_12","alias_value":"GKE56A4AMZ5Q","created_at":"2026-07-05T09:08:11Z"},{"alias_kind":"pith_short_16","alias_value":"GKE56A4AMZ5QGQDG","created_at":"2026-07-05T09:08:11Z"},{"alias_kind":"pith_short_8","alias_value":"GKE56A4A","created_at":"2026-07-05T09:08:11Z"}],"graph_snapshots":[{"event_id":"sha256:d79990c96d45807262c81ad4f693772da91e88f64807dbe3bd5ce659f55b53a8","target":"graph","created_at":"2026-07-05T09:08:11Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.02061/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We used the Imaging X-ray Polarimetry Explorer (IXPE) satellite to measure, for the first time, the 2-8 keV polarization of NGC 1068. We pointed IXPE for a net exposure time of 1.15 Ms on the target, in addition to two ~ 10 ks each Chandra snapshots in order to account for the potential impact of several ultraluminous X-ray source (ULXs) within IXPE's field-of-view. We measured a 2 - 8 keV polarization degree of 12.4% +/- 3.6% and an electric vector polarization angle of 101{\\deg} +/- 8{\\deg} at 68% confidence level. If we exclude the spectral region containing the bright Fe K lines and other ","authors_text":"A. Brez, A. De Rosa, A. Di Marco, A. Ingram, A. Manfreda, A. Marinucci, A. Marscher, A. Papitto, A. Possenti, A. Ratheesh, A. Tennant, A. Trois, B. Ramsey, C. Oppedisano, C. Panagiotou, C. Sgro, C.-T. Chen, D. E. Kim, D. Swartz, E. Cavazzuti, E. Costa, E. Del Monte, F. Capitanio, F. Kislat, F. La Monaca, F. Marin, F. Massaro, F. Muleri, F. Tavecchio, F. Tombesi, F. Ursini, F. Xie, G. Madejski, G. Matt, G. Pavlov, G. Spandre, H. Krawczynski, H.L. Marshall, I. Agudo, I. Donnarumma, I. Liodakis, I. Mitsuishi, J. Garcia, J. Heyl, J. Kolodziejczak, J. Podgorny, J. Poutanen, J. Rankin, J. Vink, K. Wu, L. A. Antonelli, L. Baldini, L. Di Gesu, L. Latronico, M. Bachetti, M. Dovciak, M. Laurenti, M. Negro, M. Perri, M. Pesce-Rollins, M. Pilia, M. Weisskopf, N. Bucciantini, N. Di Lalla, N. Omodei, N. Thomas, O. Roberts, P. Kaaret, P.-O. Petrucci, P. Slane, P. Soffitta, R. Bellazzini, R. Bonino, R. Ferrazzoli, R. Romani, R. Taverna, R. Turolla, S. Bianchi, S. Bongiorno, S. Castellano, S.Ciprini, S. Ehlert, S. Fabiani, S. Gunji, S. Jorstad, S. Maldera, S. Ng, S. O'Dell, S. Puccetti, S. Ravi, S. Tsygankov, S. Zane, T. Barnouin, T. Enoto, T. Kitaguchi, T. Mizuno, T. Tamagawa, V. Doroshenko, V. E. Gianolli, V. Karas, W. Baumgartner, W. Iwakiri, W. P. Maksym, Y. Evangelista, Y. Tawara","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-03-04T14:02:13Z","title":"X-ray polarization measurement of the gold standard of radio-quiet active galactic nuclei : NGC 1068"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.02061","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5440a4e790ed7a7c739455bfc1594b4ddd7bfeffd1bfee904c8f89cafc382e09","target":"record","created_at":"2026-07-05T09:08:11Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"394346e79120dd8e3aa3d70e18acd4231fa99e06deaa21f54ea5e3796587cb7b","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-03-04T14:02:13Z","title_canon_sha256":"79889247efd87a63b6d7b7220e3021900e3fb460bbed202e5aba5a3bed844eba"},"schema_version":"1.0","source":{"id":"2403.02061","kind":"arxiv","version":2}},"canonical_sha256":"3289df0380667b034066921179a1c575432a0168dcd28be46b90f50cf2ed9ec0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3289df0380667b034066921179a1c575432a0168dcd28be46b90f50cf2ed9ec0","first_computed_at":"2026-07-05T09:08:11.077087Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:08:11.077087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0OgI08JWimfE8/VpETcvh9e1curz5DnzEC1YGBGmE6ktYcg8cVMhJxdwlIj35jlBv10vOxIq3n9JXBqJrYrtDg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:08:11.077596Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.02061","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5440a4e790ed7a7c739455bfc1594b4ddd7bfeffd1bfee904c8f89cafc382e09","sha256:d79990c96d45807262c81ad4f693772da91e88f64807dbe3bd5ce659f55b53a8"],"state_sha256":"4ed5e11629a4971e3a3bb2a597ca6579c3d58f80ee6a1f447d5a4dbbdac5682d"}