{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:KILP6YBSQBEQJ3TLX5XDOOLVG6","short_pith_number":"pith:KILP6YBS","schema_version":"1.0","canonical_sha256":"5216ff6032804904ee6bbf6e373975379531dbb04a726e53ebb6cbf6dd1e9bf3","source":{"kind":"arxiv","id":"2507.22023","version":1},"attestation_state":"computed","paper":{"title":"Lightcurves of stars in the Chamaeleon I Association","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(2) Department of Astrophysics - University of Vienna, (3) Bundesdeutsche Arbeitsgemeinschaft f\\\"ur Ver\\\"anderliche Sterne e.V. (BAV), Astrophysics - Masaryk University, Austria, Berlin, Brno, Czechia, E. Paunzen (1), Germany), K. Bernhard (3) ((1) Department of Theoretical Physics, K. Neumannov\\'a (1), Kotl\\'a\\v{r}sk\\'a 2, L. Kue{\\ss} (2), Munsterdamm 90, T\\\"urkenschanzstra{\\ss}e 17, Vienna","submitted_at":"2025-07-29T17:17:48Z","abstract_excerpt":"Star-forming regions are essential for studying very young stellar objects of various masses. They still contain a significant amount of dust and gas. We present a study of light curves of stars in the field of the Chamaeleon I association. We use automatic spectral classification with MKCLASS to identify the spectral types of the stars in the field with a light curve from the NEOWISE and Gaia surveys. The light curves are analysed using the software Peranso and astropy. We also used VSX to identify the variability type. Based on astrometry, we have identified 92 stars, 73 of which are members"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2507.22023","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-29T17:17:48Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c4cb358959f466655210442776cd7dc0cbf8a1b607addb8844a70434f87b257a","abstract_canon_sha256":"e6ffd7f1e8f0e464f95c8d326bf22072c4decaebcb8e1e23f0c4f1aa7648d1d9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:45:11.704990Z","signature_b64":"BkaZOri4kUcKkn4Y9x2yKDOhTWm4jCEjI9v18djXbALurdc5MAPO+BL8ZMDOTzEACpR8KNVO4ihsE02HCedrAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5216ff6032804904ee6bbf6e373975379531dbb04a726e53ebb6cbf6dd1e9bf3","last_reissued_at":"2026-07-05T11:45:11.704531Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:45:11.704531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lightcurves of stars in the Chamaeleon I Association","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(2) Department of Astrophysics - University of Vienna, (3) Bundesdeutsche Arbeitsgemeinschaft f\\\"ur Ver\\\"anderliche Sterne e.V. (BAV), Astrophysics - Masaryk University, Austria, Berlin, Brno, Czechia, E. Paunzen (1), Germany), K. Bernhard (3) ((1) Department of Theoretical Physics, K. Neumannov\\'a (1), Kotl\\'a\\v{r}sk\\'a 2, L. Kue{\\ss} (2), Munsterdamm 90, T\\\"urkenschanzstra{\\ss}e 17, Vienna","submitted_at":"2025-07-29T17:17:48Z","abstract_excerpt":"Star-forming regions are essential for studying very young stellar objects of various masses. They still contain a significant amount of dust and gas. We present a study of light curves of stars in the field of the Chamaeleon I association. We use automatic spectral classification with MKCLASS to identify the spectral types of the stars in the field with a light curve from the NEOWISE and Gaia surveys. The light curves are analysed using the software Peranso and astropy. We also used VSX to identify the variability type. Based on astrometry, we have identified 92 stars, 73 of which are members"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.22023","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.22023/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2507.22023","created_at":"2026-07-05T11:45:11.704591+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.22023v1","created_at":"2026-07-05T11:45:11.704591+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.22023","created_at":"2026-07-05T11:45:11.704591+00:00"},{"alias_kind":"pith_short_12","alias_value":"KILP6YBSQBEQ","created_at":"2026-07-05T11:45:11.704591+00:00"},{"alias_kind":"pith_short_16","alias_value":"KILP6YBSQBEQJ3TL","created_at":"2026-07-05T11:45:11.704591+00:00"},{"alias_kind":"pith_short_8","alias_value":"KILP6YBS","created_at":"2026-07-05T11:45:11.704591+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6","json":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6.json","graph_json":"https://pith.science/api/pith-number/KILP6YBSQBEQJ3TLX5XDOOLVG6/graph.json","events_json":"https://pith.science/api/pith-number/KILP6YBSQBEQJ3TLX5XDOOLVG6/events.json","paper":"https://pith.science/paper/KILP6YBS"},"agent_actions":{"view_html":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6","download_json":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6.json","view_paper":"https://pith.science/paper/KILP6YBS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.22023&json=true","fetch_graph":"https://pith.science/api/pith-number/KILP6YBSQBEQJ3TLX5XDOOLVG6/graph.json","fetch_events":"https://pith.science/api/pith-number/KILP6YBSQBEQJ3TLX5XDOOLVG6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6/action/storage_attestation","attest_author":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6/action/author_attestation","sign_citation":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6/action/citation_signature","submit_replication":"https://pith.science/pith/KILP6YBSQBEQJ3TLX5XDOOLVG6/action/replication_record"}},"created_at":"2026-07-05T11:45:11.704591+00:00","updated_at":"2026-07-05T11:45:11.704591+00:00"}