{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YR2HVFNIM2OJXQVJZOJFHYLL4A","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":"f7ceee1a19b9b9b392828e902d9ab53dfcafe3c28d6685e9ea891d39d6b18d08","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-06-27T19:58:50Z","title_canon_sha256":"a890302f9d0ba89b627d784f71df92c735ca4463ad29bbc20676d91135ce64b7"},"schema_version":"1.0","source":{"id":"2306.15776","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.15776","created_at":"2026-07-05T06:43:39Z"},{"alias_kind":"arxiv_version","alias_value":"2306.15776v1","created_at":"2026-07-05T06:43:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.15776","created_at":"2026-07-05T06:43:39Z"},{"alias_kind":"pith_short_12","alias_value":"YR2HVFNIM2OJ","created_at":"2026-07-05T06:43:39Z"},{"alias_kind":"pith_short_16","alias_value":"YR2HVFNIM2OJXQVJ","created_at":"2026-07-05T06:43:39Z"},{"alias_kind":"pith_short_8","alias_value":"YR2HVFNI","created_at":"2026-07-05T06:43:39Z"}],"graph_snapshots":[{"event_id":"sha256:2044ae7f1181ecbcbc72db129ea5ee879516fb7a777458e7663ea70f0c196661","target":"graph","created_at":"2026-07-05T06:43:39Z","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/2306.15776/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We aim at extracting the transmission spectrum of the HI Balmer lines of the ultra-hot Jupiter (UHJ) KELT-20b/MASCARA-2b from observations and to further compare the results with what obtained through forward modelling accounting for non-local thermodynamic equilibrium (NLTE) effects. We extract the line profiles from six transits obtained with the HARPS-N high-resolution spectrograph attached to the Telescopio Nazionale Galileo telescope. We compute the temperature-pressure (TP) profile employing the helios code in the lower atmosphere and the Cloudy NLTE code in the middle and upper atmosphe","authors_text":"A. Bignamini, A. F. Lanza, A. S. Bonomo, A. Sozzetti, C. Knapic, D. Gandolfi, D. Nardiello, D. Shulyak, D. Sicilia, E. Poretti, F. Biassoni, F. Borsa, F. Haardt, F. Rigamonti, G. Aresu, G. Guilluy, G. M. Cappello, I. Carleo, L. Fossati, L. Malavolta, L. Mancini, L. Pino, M. Brogi, M. Pinamonti, M. Rainer, M. Young, R. Claudi, R. Cosentino, T. Koskinen, V. Nascimbeni","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-06-27T19:58:50Z","title":"The GAPS programme at TNG. XLV. HI Balmer lines transmission spectroscopy and NLTE atmospheric modelling of the ultra-hot Jupiter KELT-20b/MASCARA-2b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.15776","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":"sha256:45f803f3beba68b3e75ce58087c88df62f980f90a8698fff956fcb65de663394","target":"record","created_at":"2026-07-05T06:43:39Z","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":"f7ceee1a19b9b9b392828e902d9ab53dfcafe3c28d6685e9ea891d39d6b18d08","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-06-27T19:58:50Z","title_canon_sha256":"a890302f9d0ba89b627d784f71df92c735ca4463ad29bbc20676d91135ce64b7"},"schema_version":"1.0","source":{"id":"2306.15776","kind":"arxiv","version":1}},"canonical_sha256":"c4747a95a8669c9bc2a9cb9253e16be028adf77f4ff5a2243da522cf0b421002","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4747a95a8669c9bc2a9cb9253e16be028adf77f4ff5a2243da522cf0b421002","first_computed_at":"2026-07-05T06:43:39.665166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:43:39.665166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hRMZVomxs8xIdJrwpfSKyhXQOOcXOXb3BgkRf/IQmWywwvTfSgZzABJG5UbjC68q+n6GEZDMFO07G/rH+oWRCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:43:39.665666Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.15776","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45f803f3beba68b3e75ce58087c88df62f980f90a8698fff956fcb65de663394","sha256:2044ae7f1181ecbcbc72db129ea5ee879516fb7a777458e7663ea70f0c196661"],"state_sha256":"462dd23f4bdbe561b22ca0df92f1bbb84d71039a23613bef162d3c2294628e19"}