{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CW7FYRUTA6VSCYDGTQIV2JYUTJ","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":"b55da4f0de5e6ab5b5ed462a4c15ab327aa464687b284535832868bb9c21813a","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-08T14:31:28Z","title_canon_sha256":"e695cc8c06c32b1d28150ed9954d7cf6d570ef3b08af88d9993f66978f7c5034"},"schema_version":"1.0","source":{"id":"1706.02608","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02608","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02608v1","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02608","created_at":"2026-05-18T00:28:15Z"},{"alias_kind":"pith_short_12","alias_value":"CW7FYRUTA6VS","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CW7FYRUTA6VSCYDG","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CW7FYRUT","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:6fc586fc36ef0d73bfc0d38ad525f7f3da7cd1707984ff6ab623ee5eb4a3a348","target":"graph","created_at":"2026-05-18T00:28:15Z","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":"Determining the gas density and temperature structures of protoplanetary disks is a fundamental task to constrain planet formation theories. This is a challenging procedure and most determinations are based on model-dependent assumptions. We attempt a direct determination of the radial and vertical temperature structure of the Flying Saucer disk, thanks to its favorable inclination of 90 degrees. We present a method based on the tomographic study of an edge-on disk. Using ALMA, we observe at 0.5$\"$ resolution the Flying Saucer in CO J=2-1 and CS J=5-4. This edge-on disk appears in silhouette a","authors_text":"A. Dutrey, D. Semenov, E. Chapillon, E. Di Folco, N. Grosso, O. Denis-Alpizar, R. Teague, S. Guilloteau, T. Henning, T. Stoecklin, U. Gorti, V. Pi\\'etu, V. Wakelam","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-08T14:31:28Z","title":"The Flying Saucer: Tomography of the thermal and density gas structure of an edge-on protoplanetary disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02608","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":"sha256:36d1307cfe29f39690b337f2f5b6c05b5892142d0d4029b2bb8a7dee92ecd9df","target":"record","created_at":"2026-05-18T00:28:15Z","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":"b55da4f0de5e6ab5b5ed462a4c15ab327aa464687b284535832868bb9c21813a","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-08T14:31:28Z","title_canon_sha256":"e695cc8c06c32b1d28150ed9954d7cf6d570ef3b08af88d9993f66978f7c5034"},"schema_version":"1.0","source":{"id":"1706.02608","kind":"arxiv","version":1}},"canonical_sha256":"15be5c469307ab2160669c115d27149a55a2d4b26e6bded743f652c0a476007b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15be5c469307ab2160669c115d27149a55a2d4b26e6bded743f652c0a476007b","first_computed_at":"2026-05-18T00:28:15.502771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:15.502771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xU7MnRPEWEaXkXkbmNf/kCz+Dsjfyo76SOKM1zeCWJMB2HIRX2Mfg6tZa27F46/cx8LizspYkFXA9EmIwGHYCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:15.503536Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.02608","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36d1307cfe29f39690b337f2f5b6c05b5892142d0d4029b2bb8a7dee92ecd9df","sha256:6fc586fc36ef0d73bfc0d38ad525f7f3da7cd1707984ff6ab623ee5eb4a3a348"],"state_sha256":"42b60fd849422531d6416b4f1035b24ec9541b8dd37d959e9112438484f5b90a"}