{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5SDBZP7WVVO3N74NIAE666DDYK","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":"407a191a9b1a425b1ec8aec2cadefdad633e37082045825e8bca14ff8f3ef3b2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-13T13:05:05Z","title_canon_sha256":"fcb782041116ff7ce32fd9d6c50d204101b9f70ee12ed18b2fd8d3752456e4b3"},"schema_version":"1.0","source":{"id":"1306.3100","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3100","created_at":"2026-05-18T01:49:22Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3100v1","created_at":"2026-05-18T01:49:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3100","created_at":"2026-05-18T01:49:22Z"},{"alias_kind":"pith_short_12","alias_value":"5SDBZP7WVVO3","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5SDBZP7WVVO3N74N","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5SDBZP7W","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:334a9b22276240c17776f3a8b94ae44633d96d6058a6ade898f5229a88020bf1","target":"graph","created_at":"2026-05-18T01:49:22Z","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":"We carried out an imaging survey for extrasolar planets around stars in the Pleiades (125 Myr, 135 pc) in the $H$ and $K_{S}$ bands using HiCIAO combined with the adaptive optics, AO188, on the Subaru telescope. We found 13 companion candidates fainter than 14.5 mag in the $H$ band around 9 stars. Five of these 13 were confirmed to be background stars by measurement of their proper motion. One was not found in the second epoch observation, and thus was not a background or companion object. One had multi-epoch image, but the precision of its proper motion was not sufficient to conclude whether ","authors_text":"Amaya Moro-Martin, Carol Grady, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Eugene Serabyn, Gillian R. Knapp, Hideki Takami, Hiroshi Shibai, Hiroshi Suto, Hiroshi Terada, John Wisniewski, Joseph Carson, June Nishikawa, Jungmi Kwon, Jun Hashimoto, Jun-ichi Morino, Jun Sudo, Klaus Hodapp, Kodai Yamamoto, Lyu Abe, Makoto Watanabe, Markus Feldt, Markus Janson, Masahiko Hayashi, Masanori Iye, Masayuki Kuzuhara, Michihiro Takami, Mihoko Konishi, Mike McElwain, Miki Ishii, Misato Fukagawa, Miwa Goto, Motohide Tamura, Naruhisa Takato, Nobuhiko Kusakabe, Olivier Guyon, Ryo Kandori, Ryoko Tanii, Ryuji Suzuki, Saeko Hayashi, Sebastian E. Egner, Shoken Miyama, Tae-Soo Pyo, Takahiro Sumi, Taro Matsuo, Tetsuo Nishimura, Thayne Currie, Thomas Henning, Timothy D. Brandt, Tomonori Usuda, Tomoyuki Kudo, Toru Yamada, Wolfgang Brandner, Yoichi Itoh, Yutaka Hayano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-13T13:05:05Z","title":"Direct Imaging Search for Extrasolar Planets in the Pleiades"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3100","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":"sha256:021ce9e31b62b9f8dd4a78f7c5857b5da8ae5980a973443f744f2f8e5accc8f3","target":"record","created_at":"2026-05-18T01:49:22Z","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":"407a191a9b1a425b1ec8aec2cadefdad633e37082045825e8bca14ff8f3ef3b2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-13T13:05:05Z","title_canon_sha256":"fcb782041116ff7ce32fd9d6c50d204101b9f70ee12ed18b2fd8d3752456e4b3"},"schema_version":"1.0","source":{"id":"1306.3100","kind":"arxiv","version":1}},"canonical_sha256":"ec861cbff6ad5db6ff8d4009ef7863c2bc133e07ec917d0e6b4c2065d81aec32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec861cbff6ad5db6ff8d4009ef7863c2bc133e07ec917d0e6b4c2065d81aec32","first_computed_at":"2026-05-18T01:49:22.791067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:22.791067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WgDZ1+OiOiCjH/4AvHkQZj87bov913escU0UzMZ0ih/dX81fVcGB/g/bcH6MZpoK4nFCgKtYboVd7qCMSIg5Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:22.791499Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.3100","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:021ce9e31b62b9f8dd4a78f7c5857b5da8ae5980a973443f744f2f8e5accc8f3","sha256:334a9b22276240c17776f3a8b94ae44633d96d6058a6ade898f5229a88020bf1"],"state_sha256":"e143a386f612178b6f7369f7edda604b4fd11ea03b9fed1bc81741c55508c9a8"}