{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XK7R2TWIUI5UC5NBKHUXFD5RGI","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":"d8d35b25a4ba36b4c51ef7f0740f2d06cd4475b512e57bf622669ab1e4aa8ac6","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-09T17:09:19Z","title_canon_sha256":"4e69debf3b20ad037a06d6e4f7a594c295afd32d73a8c6867f00db4baad6c934"},"schema_version":"1.0","source":{"id":"1612.03091","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03091","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03091v1","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03091","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"XK7R2TWIUI5U","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XK7R2TWIUI5UC5NB","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XK7R2TWI","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:438eb5d505873ae25b0acc6b47281ceda2979f3a2d579f5f23cec8193c08f32b","target":"graph","created_at":"2026-05-18T00:53:04Z","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"},"paper":{"abstract_excerpt":"HD 141569 A is a pre-main sequence B9.5 Ve star surrounded by a prominent and complex circumstellar disk, likely still in a transition stage from protoplanetary to debris disk phase. Here, we present a new image of the third inner disk component of HD 141569 A made in the L' band (3.8 micron) during the commissioning of the vector vortex coronagraph recently installed in the near-infrared imager and spectrograph NIRC2 behind the W.M. Keck Observatory Keck II adaptive optics system. We used reference point spread function subtraction, which reveals the innermost disk component from the inner wo","authors_text":"Aissa Jolivet, Brunella Carlomagno, Bruno Femenia, Carlos A. Gomez Gonzalez, Christian Delacroix, Christophe Pinte, Denis Defr\\`ere, Dimitri Mawet, \\'Elodie Choquet, Elsa huby, Ernesto Vargas Catalan, Eugene Serabyn, Jean Surdej, J\\'er\\'emy Lebreton, Julien Milli, Keith Matthews, Maddalena Reggiani, Michael Bottom, Mikael Karlsson, Olivier Absil, Olivier Wertz, Pierre Piron, Pontus Forsberg, Serge Habraken, Valentin Christiaens","cross_cats":["astro-ph.EP","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-09T17:09:19Z","title":"Characterization of the inner disk around HD 141569 A from Keck/NIRC2 L-band vortex coronagraphy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03091","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":"sha256:40203e102ab478d3edc31660ae2403bcf5f54a80cd00e364e175397e58e7f440","target":"record","created_at":"2026-05-18T00:53:04Z","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":"d8d35b25a4ba36b4c51ef7f0740f2d06cd4475b512e57bf622669ab1e4aa8ac6","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-09T17:09:19Z","title_canon_sha256":"4e69debf3b20ad037a06d6e4f7a594c295afd32d73a8c6867f00db4baad6c934"},"schema_version":"1.0","source":{"id":"1612.03091","kind":"arxiv","version":1}},"canonical_sha256":"babf1d4ec8a23b4175a151e9728fb132122e65f57c767b44dbf86dc91283e699","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"babf1d4ec8a23b4175a151e9728fb132122e65f57c767b44dbf86dc91283e699","first_computed_at":"2026-05-18T00:53:04.857796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:04.857796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ylQYYh6xI7deKaCZWx2ydT8g5GwWFuwvF7HnAhNIQOAocK6MUJntfEKqRMSi3KUlKRY+zyXe9ZZzsDt8wcdWCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:04.858299Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03091","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40203e102ab478d3edc31660ae2403bcf5f54a80cd00e364e175397e58e7f440","sha256:438eb5d505873ae25b0acc6b47281ceda2979f3a2d579f5f23cec8193c08f32b"],"state_sha256":"bde2da9da49d2cd6101eecdd78ef2b2257611c5d3d4818ce3ef8fea6e956f947"}