{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:ADO5I2S5Y2EENDTO74IMPWMCDD","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":"ebb21da03775284f2228fe89e89d07ed37d2cba94b30a61e48b9371f22feb9fc","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-01-11T17:10:07Z","title_canon_sha256":"7a9f24138e5d1babb32f6f523b867303c9e346e7fa051a10803f51ece1aa6410"},"schema_version":"1.0","source":{"id":"2101.04033","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.04033","created_at":"2026-07-05T02:19:43Z"},{"alias_kind":"arxiv_version","alias_value":"2101.04033v1","created_at":"2026-07-05T02:19:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.04033","created_at":"2026-07-05T02:19:43Z"},{"alias_kind":"pith_short_12","alias_value":"ADO5I2S5Y2EE","created_at":"2026-07-05T02:19:43Z"},{"alias_kind":"pith_short_16","alias_value":"ADO5I2S5Y2EENDTO","created_at":"2026-07-05T02:19:43Z"},{"alias_kind":"pith_short_8","alias_value":"ADO5I2S5","created_at":"2026-07-05T02:19:43Z"}],"graph_snapshots":[{"event_id":"sha256:d23c5a6ae090da6f7ce38409c6e8336ebe5c60024495dc79d48339b0e485046f","target":"graph","created_at":"2026-07-05T02:19:43Z","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/2101.04033/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Young giant planets and brown dwarf companions emit near-infrared radiation that can be linearly polarized up to several percent. This polarization can reveal the presence of a circumsubstellar accretion disk, rotation-induced oblateness of the atmosphere, or an inhomogeneous distribution of atmospheric dust clouds. We measured the near-infrared linear polarization of 20 known directly imaged exoplanets and brown dwarf companions with the high-contrast imager SPHERE-IRDIS at the VLT. We reduced the data using the IRDAP pipeline to correct for the instrumental polarization and crosstalk with an","authors_text":"A.J. Bohn, A. Vigan, A. Zurlo, C. Dominik, C. Ginski, C. Perrot, C.U. Keller, F. M\\'enard, F. Snik, G. Chauvin, J. de Boer, J.H. Girard, J. Milli, M.A. Millar-Blanchaer, M. Benisty, M. Bonnefoy, M. Keppler, M. Langlois, R.G. van Holstein, R. Jensen-Clem, S. Hinkley, S. Marino, T.O.B. Schmidt, T. Stolker, Z. Wahhaj","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-01-11T17:10:07Z","title":"A survey of the linear polarization of directly imaged exoplanets and brown dwarf companions with SPHERE-IRDIS. First polarimetric detections revealing disks around DH Tau B and GSC 6214-210 B"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.04033","kind":"arxiv","version":1},"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":"sha256:443377e8dfac3e53a1c8158b8d8c802a6473de228dd087e08d7360a7c76681a2","target":"record","created_at":"2026-07-05T02:19:43Z","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":"ebb21da03775284f2228fe89e89d07ed37d2cba94b30a61e48b9371f22feb9fc","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-01-11T17:10:07Z","title_canon_sha256":"7a9f24138e5d1babb32f6f523b867303c9e346e7fa051a10803f51ece1aa6410"},"schema_version":"1.0","source":{"id":"2101.04033","kind":"arxiv","version":1}},"canonical_sha256":"00ddd46a5dc688468e6eff10c7d98218e045bdf8a2ddb1a3eef0b5eb609aecd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00ddd46a5dc688468e6eff10c7d98218e045bdf8a2ddb1a3eef0b5eb609aecd0","first_computed_at":"2026-07-05T02:19:43.549572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:19:43.549572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3znmKyw3vdSJAesbHR0/0AgLbfkauEgi86TITzCwGqXqM7VqA7pv+Bms8PE7ZevMJMW7e5rcA88l219idY4VAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:19:43.550024Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.04033","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:443377e8dfac3e53a1c8158b8d8c802a6473de228dd087e08d7360a7c76681a2","sha256:d23c5a6ae090da6f7ce38409c6e8336ebe5c60024495dc79d48339b0e485046f"],"state_sha256":"72e2a9c6c92ca94928b46a449b598f472b10963c7dcda2495b59612820c76970"}