{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:CTI7ATSZ6JVTHD3MJCUV2KGGTN","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":"c4582cee1efcd9bea430c5b633d6391dabb1f014322fb964d30d86906a75b8ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-13T15:02:53Z","title_canon_sha256":"6ae6f439e1b080586e11496e09a8a195917560e00e42325b162dc27e663de683"},"schema_version":"1.0","source":{"id":"1004.2208","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.2208","created_at":"2026-05-18T02:08:06Z"},{"alias_kind":"arxiv_version","alias_value":"1004.2208v1","created_at":"2026-05-18T02:08:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.2208","created_at":"2026-05-18T02:08:06Z"},{"alias_kind":"pith_short_12","alias_value":"CTI7ATSZ6JVT","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"CTI7ATSZ6JVTHD3M","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"CTI7ATSZ","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:f6b7b873e50f94ef0da1fc0e72bdc97f774998e9d1ea1a736046e6bacb4c23eb","target":"graph","created_at":"2026-05-18T02:08:06Z","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":"Context. Based on the far infrared excess the Herbig class of stars is divided into a group with flaring circumstellar disks (group I) and a group with flat circumstellar disks (group II). Dust sedimentation is generally proposed as an evolution mechanism to transform flaring disks into flat disks. Theory predicts that during this process the disks preserve their gas content, however observations of group II Herbig Ae stars demonstrate a lack of gas. Aims. We map the spatial distribution of the gas and dust around the group II Herbig Ae star HD 95881. Methods. We analyze optical photometry, Q-","authors_text":"A. de Koter, A.G.G.M. Tielens, A.P. Verhoeff, B. Acke, E. Pantin, G.D. Mulders, J. Bouwman, L.B.F.M. Waters, M.E. van den Ancker, M. Min, R. van Boekel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-13T15:02:53Z","title":"HD 95881: A gas rich to gas poor transition disk?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.2208","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":"sha256:63b9d7f8c6eec9d68a7e85c507b1687be0287c5853ed84f79051543543be0379","target":"record","created_at":"2026-05-18T02:08:06Z","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":"c4582cee1efcd9bea430c5b633d6391dabb1f014322fb964d30d86906a75b8ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-13T15:02:53Z","title_canon_sha256":"6ae6f439e1b080586e11496e09a8a195917560e00e42325b162dc27e663de683"},"schema_version":"1.0","source":{"id":"1004.2208","kind":"arxiv","version":1}},"canonical_sha256":"14d1f04e59f26b338f6c48a95d28c69b6a6853a5d90ab6d1159d3255ecf131e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14d1f04e59f26b338f6c48a95d28c69b6a6853a5d90ab6d1159d3255ecf131e0","first_computed_at":"2026-05-18T02:08:06.101309Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:06.101309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D9RCDLjO6NfXhIT+41P1dJTirTa6mEoUYqb5LUWuKt/QKQIXrIqEKJlN4e9/ARAfzAA2wuwfB8OZMCTBYc3XCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:06.102043Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.2208","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63b9d7f8c6eec9d68a7e85c507b1687be0287c5853ed84f79051543543be0379","sha256:f6b7b873e50f94ef0da1fc0e72bdc97f774998e9d1ea1a736046e6bacb4c23eb"],"state_sha256":"39d215390cdb9150f5a417686f700473b280a0645cfb1c77251f7ce9ed170afa"}