{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:Y4DWXCIIHCQWPZPXRTKTYB3EDC","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":"897c2236c77e5c8df8c95ab528034a470227a61ba75a6ca4c01f1ef4f050d577","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-02T20:32:26Z","title_canon_sha256":"37f1c0ad0b5a1ee9c18d8d98157a03c19e2d60bbf19ea6738d33fd6c8d28a670"},"schema_version":"1.0","source":{"id":"1009.0538","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0538","created_at":"2026-05-18T02:05:37Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0538v1","created_at":"2026-05-18T02:05:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0538","created_at":"2026-05-18T02:05:37Z"},{"alias_kind":"pith_short_12","alias_value":"Y4DWXCIIHCQW","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"Y4DWXCIIHCQWPZPX","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"Y4DWXCII","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:6ff1e43f7a2230a5015a1372b71301616ceef488e253b959cd985d8d2b95f0af","target":"graph","created_at":"2026-05-18T02:05:37Z","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":"Direct imaging of exoplanets requires both high contrast and high spatial resolution. Here, we present the first scientific results obtained with the newly commissioned Apodizing Phase Plate coronagraph (APP) on VLT/NACO. We detected the exoplanet beta Pictoris b in the narrow band filter centered at 4.05 micron (NB4.05). The position angle (209.13 +- 2.12 deg) and the projected separation to its host star (0.\"354 +- 0\".012, i.e., 6.8 +- 0.2 AU at a distance of 19.3 pc) are in good agreement with the recently presented data from Lagrange et al. (2010). Comparing the observed NB4.05 magnitude o","authors_text":"Anne-Marie Lagrange (Grenoble), Anthony Boccaletti (Observatoire de Paris, Daniel Apai (STSci), Gael Chauvin (Grenoble), Julien H. V. Girard (ESO Santiago), Markus Kasper (ESO Garching), Matthew Kenworthy (Leiden), Meudon), Michael R. Meyer (ETH Zurich), Mickael Bonnefoy (Grenoble), Philip M. Hinz (Steward Observatory, Rainer Lenzen (MPIA), Sascha P. Quanz (ETH Zurich), Tucson)","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-02T20:32:26Z","title":"First Results From VLT NACO Apodizing Phase Plate: 4-micron Images of the Exoplanet beta Pictoris b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0538","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:f4aead07ba8c1748d42cd3cd9df762be0fd968406be02040064c2fe22a3aa390","target":"record","created_at":"2026-05-18T02:05:37Z","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":"897c2236c77e5c8df8c95ab528034a470227a61ba75a6ca4c01f1ef4f050d577","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-02T20:32:26Z","title_canon_sha256":"37f1c0ad0b5a1ee9c18d8d98157a03c19e2d60bbf19ea6738d33fd6c8d28a670"},"schema_version":"1.0","source":{"id":"1009.0538","kind":"arxiv","version":1}},"canonical_sha256":"c7076b890838a167e5f78cd53c076418a4846da8271c149fc10c66c1f19c6e10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7076b890838a167e5f78cd53c076418a4846da8271c149fc10c66c1f19c6e10","first_computed_at":"2026-05-18T02:05:37.676353Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:37.676353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lDFHX+ru2hK9NdyYMQGM5cUTz2by3MWu78KkcaXoWP9X41kfFLuDFTcWw3v6S4J5Z10O0wd6RSnMyRKbEYC3Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:37.677079Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.0538","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f4aead07ba8c1748d42cd3cd9df762be0fd968406be02040064c2fe22a3aa390","sha256:6ff1e43f7a2230a5015a1372b71301616ceef488e253b959cd985d8d2b95f0af"],"state_sha256":"7c2710cd2fc634db2269ef113b7b7242ee96d77e7fd7b07f99df8068d4847d69"}