{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:J2NFCXEXBRGLS3GZLMZBIR3UXX","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":"15a8a7ff3b9c08948802c10f69fa3caabe1a515709ddbd28100dd79275afd88e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-23T11:09:20Z","title_canon_sha256":"7208ce54beb8de7a6acc2b7784d00ac57dd540d3ea50f1b33e98cb4c7295b450"},"schema_version":"1.0","source":{"id":"0911.4363","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.4363","created_at":"2026-05-18T02:10:37Z"},{"alias_kind":"arxiv_version","alias_value":"0911.4363v2","created_at":"2026-05-18T02:10:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.4363","created_at":"2026-05-18T02:10:37Z"},{"alias_kind":"pith_short_12","alias_value":"J2NFCXEXBRGL","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"J2NFCXEXBRGLS3GZ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"J2NFCXEX","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:41bb630fc08d6856e1b0c722d8e676d7e2de2e1193fa28390cd5545a3285216e","target":"graph","created_at":"2026-05-18T02:10:37Z","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":"We present new long-baseline spectro-interferometric observations of the HerbigAe star HD163296 obtained in the H and K bands with the AMBER instrument at VLTI. The observations cover a range of spatial resolutions between 3 and 12 milli-arcseconds, with a spectral resolution of ~30. With a total of 1481 visibilities and 432 closure phases, they result in the best (u,v) coverage achieved on a young star so far. The circumstellar material is resolved at the sub-AU spatial scale and closure phase measurements indicate a small but significant deviation from point-symmetry. We discuss the results ","authors_text":"A. Isella, A. Merand, A. Natta, F. Malbet, F. Massi, G. Duvert, G. Weigelt, J-B. LeBouquin, J. Olofsson, J-P. Berger, L. Testi, M. Benisty, M. Vannier, S. Kraus, S. Robbe-Dubois","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-23T11:09:20Z","title":"Strong near-infrared emission in the sub-AU disk of the Herbig Ae star HD163296: evidence for refractory dust?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.4363","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:eb88a41bfca3f83cb042b070b5027de4c51a6265966c32532a36d352cda5b961","target":"record","created_at":"2026-05-18T02:10:37Z","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":"15a8a7ff3b9c08948802c10f69fa3caabe1a515709ddbd28100dd79275afd88e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-23T11:09:20Z","title_canon_sha256":"7208ce54beb8de7a6acc2b7784d00ac57dd540d3ea50f1b33e98cb4c7295b450"},"schema_version":"1.0","source":{"id":"0911.4363","kind":"arxiv","version":2}},"canonical_sha256":"4e9a515c970c4cb96cd95b32144774bdde5ecd2ea429d199e820b27a5d16e45f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e9a515c970c4cb96cd95b32144774bdde5ecd2ea429d199e820b27a5d16e45f","first_computed_at":"2026-05-18T02:10:37.554901Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:37.554901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NLRUrhPtOOVs0BFztMhxTbNwpAz+p6IsfoEOkL84UAkaAtASq/xQX1p7AuHKWoKPaE83ZoJF7SpqtBuLkIhUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:37.555610Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.4363","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb88a41bfca3f83cb042b070b5027de4c51a6265966c32532a36d352cda5b961","sha256:41bb630fc08d6856e1b0c722d8e676d7e2de2e1193fa28390cd5545a3285216e"],"state_sha256":"598ceda5ea22eee186943e7b26b7c10a3bfee5940295e70c0c46dac2d30fc850"}