{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QVOM5OBLRTUJF2RP5C7U5SBA7Y","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":"f78e9b39509387a35890990a4a2dd7d50a78e3a8bcd4bbea68ad777d8549c4b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-11-05T21:44:00Z","title_canon_sha256":"9715f2fb3e5ae7047ef266878ed2fc9350fbe0b2b09c864b4685cc7a0066c5b1"},"schema_version":"1.0","source":{"id":"1311.1228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1228","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1228v1","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1228","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"QVOM5OBLRTUJ","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QVOM5OBLRTUJF2RP","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QVOM5OBL","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:a95d34722b075f74b85336f694807485711e9f0b9ff427ba9147ff4aa70cdc5c","target":"graph","created_at":"2026-05-18T01:46:38Z","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":"There is growing observational evidence that disk evolution is stellar-mass dependent. Here, we show that these dependencies extend to the atomic and molecular content of disk atmospheres. We analyze a unique dataset of high-resolution Spitzer/IRS spectra from 8 very low-mass star and brown dwarf disks. We report the first detections of Ne+, H2, CO2, and tentative detections of H2O toward these faint and low-mass disks. Two of our [NeII] 12.81 micron emission lines likely trace the hot (>5,000 K) disk surface irradiated by X-ray photons from the central stellar/sub-stellar object. The H2 S(2) ","authors_text":"Greg Herczeg (Kavli Institute), Ilaria Pascucci (LPL), John Carr (NRL), Simon Bruderer (MPE)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-11-05T21:44:00Z","title":"The Atomic and Molecular Content of Disks Around Very Low-mass Stars and Brown Dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1228","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:aafb8eaef848e063a89be6061629c5024e7ccf1b144bc966a48b16abf08a3219","target":"record","created_at":"2026-05-18T01:46:38Z","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":"f78e9b39509387a35890990a4a2dd7d50a78e3a8bcd4bbea68ad777d8549c4b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-11-05T21:44:00Z","title_canon_sha256":"9715f2fb3e5ae7047ef266878ed2fc9350fbe0b2b09c864b4685cc7a0066c5b1"},"schema_version":"1.0","source":{"id":"1311.1228","kind":"arxiv","version":1}},"canonical_sha256":"855cceb82b8ce892ea2fe8bf4ec820fe23024f64060242cbba165e7cc33e5347","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"855cceb82b8ce892ea2fe8bf4ec820fe23024f64060242cbba165e7cc33e5347","first_computed_at":"2026-05-18T01:46:38.548912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:38.548912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DyTkYre/0MTTawnHDKTukVCSWczC1iytOZL+ZBbieCy5HWnPtj7p76+vlkcLBs1e6VpQcJOFMLM/OzlTZoHiAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:38.549498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aafb8eaef848e063a89be6061629c5024e7ccf1b144bc966a48b16abf08a3219","sha256:a95d34722b075f74b85336f694807485711e9f0b9ff427ba9147ff4aa70cdc5c"],"state_sha256":"1a910dcd6d20d42d7029f5f3fc8bfe9204f3ccf9c43e864d6c8b30b11ad04abd"}