{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:K6HISS3DN73DVWL3JL7NWUEA5J","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":"2f69d518755982804acd18131109e25a3d66e66ac7191d95651f852e1293dfb7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-10T22:13:27Z","title_canon_sha256":"0984f2583b7d1fd9d6c6fbf357441fd9044247b49af6bb586e9023791ec82335"},"schema_version":"1.0","source":{"id":"astro-ph/0506252","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0506252","created_at":"2026-07-04T16:52:32Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506252v1","created_at":"2026-07-04T16:52:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506252","created_at":"2026-07-04T16:52:32Z"},{"alias_kind":"pith_short_12","alias_value":"K6HISS3DN73D","created_at":"2026-07-04T16:52:32Z"},{"alias_kind":"pith_short_16","alias_value":"K6HISS3DN73DVWL3","created_at":"2026-07-04T16:52:32Z"},{"alias_kind":"pith_short_8","alias_value":"K6HISS3D","created_at":"2026-07-04T16:52:32Z"}],"graph_snapshots":[{"event_id":"sha256:084a18fffc5f1e80f05c4cc7b4e78a7f0a5fb31490723f4bee5ff5e30ace8fe7","target":"graph","created_at":"2026-07-04T16:52:32Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0506252/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report infrared spectroscopic observations of HD 105, a nearby ($\\sim 40$ pc) and relatively young ($\\sim 30$ Myr) G0 star with excess infrared continuum emission, which has been modeled as arising from an optically thin circumstellar dust disk with an inner hole of size $\\gtrsim 13$ AU. We have used the high spectral resolution mode of the Infrared Spectrometer (IRS) on the Spitzer Space Telescope to search for gas emission lines from the disk. The observations reported here provide upper limits to the fluxes of H$_2$ S(0) 28$\\mu$m, H$_2$ S(1) 17$\\mu$m, H$_2$ S(2) 12 $\\mu$m, [FeII] 26$\\mu$","authors_text":"D. Hollenbach, D.Padgett, D.Soderblom, E.Mamajek, I.Pascucci, J.Carpenter, J.Lunine, J.Najita, J.Rodmann, J.S.Kim, L.Hillenbrand, M.Meyer, P.Morris, S.Wolf, T.Brooke, U.Gorti","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-06-10T22:13:27Z","title":"Formation and Evolution of Planetary Systems: Upper Limits the Gas Mass in HD105"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506252","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":"sha256:5119cb8765d4adf8653ec574c8d4c49ec42c5f901d427a58551f84cd1d7e7aab","target":"record","created_at":"2026-07-04T16:52:32Z","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":"2f69d518755982804acd18131109e25a3d66e66ac7191d95651f852e1293dfb7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-10T22:13:27Z","title_canon_sha256":"0984f2583b7d1fd9d6c6fbf357441fd9044247b49af6bb586e9023791ec82335"},"schema_version":"1.0","source":{"id":"astro-ph/0506252","kind":"arxiv","version":1}},"canonical_sha256":"578e894b636ff63ad97b4afedb5080ea719bdcfd64324cbf9842672897203e5f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"578e894b636ff63ad97b4afedb5080ea719bdcfd64324cbf9842672897203e5f","first_computed_at":"2026-07-04T16:52:32.162458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:52:32.162458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RnMVJcocrGtjO1Z+dymgCQaalbHNuBZ9BIayGt37/EXq8+UwYxptCySc0aUNP809SycRZSWQYE8zxwJ3i5uZBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:52:32.162878Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0506252","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5119cb8765d4adf8653ec574c8d4c49ec42c5f901d427a58551f84cd1d7e7aab","sha256:084a18fffc5f1e80f05c4cc7b4e78a7f0a5fb31490723f4bee5ff5e30ace8fe7"],"state_sha256":"53b4b7b57dad84527f9a92cfbe7e7e2600b5b60aa08e1bd7b4f74e1320530ad0"}