{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:E7FV3XWWMXOMJUCEY5GUPCCAM3","short_pith_number":"pith:E7FV3XWW","schema_version":"1.0","canonical_sha256":"27cb5dded665dcc4d044c74d47884066ff72924a47ddc10733e6abed07cf14a4","source":{"kind":"arxiv","id":"2103.07922","version":2},"attestation_state":"computed","paper":{"title":"Gaia-EDR3 Parallax Distances to the Great Carina Nebula and its Star Clusters (Trumpler 14, 15, 16)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Charles Danforth (Univ. of Colorado), Jeremy Darling, Michael Shull","submitted_at":"2021-03-14T13:23:02Z","abstract_excerpt":"Using offset-corrected Gaia-EDR3 parallax measurements and spectrophotometric methods, we have determined distances for 69 massive stars in the Carina OB1 association and associated clusters: Trumpler 16 (21 stars), Trumpler 14 (20 stars), Trumpler 15 (3 stars), Bochum 11 (5 stars), and South Pillars region (20 stars). Past distance estimates to the Carina Nebula range from 2.2 to 3.6 kpc, with uncertainties arising from photometry and anomalous dust extinction. The EDR3 parallax solutions show considerable improvement over DR2, with typical errors $\\sigma_{\\varpi}/\\varpi \\approx$~3-5%. The O-"},"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":"2103.07922","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-14T13:23:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e9596d4c620a19abb93212b54f922d2a7d3bba3376bfaf94bd2b41780224addb","abstract_canon_sha256":"4a95c7f569bca6c138ecadb51332408326f73a378d289743444337a8e192ea93"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:29:12.921890Z","signature_b64":"KfOEuiRyRzhZ7L3PyszOVl2RPB1BDsRwmMnzaDwRkHKEftpto/T6MzvPX8FF93YtMCHO0rE5+dCcHF0d4zTbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27cb5dded665dcc4d044c74d47884066ff72924a47ddc10733e6abed07cf14a4","last_reissued_at":"2026-07-05T02:29:12.921462Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:29:12.921462Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gaia-EDR3 Parallax Distances to the Great Carina Nebula and its Star Clusters (Trumpler 14, 15, 16)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Charles Danforth (Univ. of Colorado), Jeremy Darling, Michael Shull","submitted_at":"2021-03-14T13:23:02Z","abstract_excerpt":"Using offset-corrected Gaia-EDR3 parallax measurements and spectrophotometric methods, we have determined distances for 69 massive stars in the Carina OB1 association and associated clusters: Trumpler 16 (21 stars), Trumpler 14 (20 stars), Trumpler 15 (3 stars), Bochum 11 (5 stars), and South Pillars region (20 stars). Past distance estimates to the Carina Nebula range from 2.2 to 3.6 kpc, with uncertainties arising from photometry and anomalous dust extinction. The EDR3 parallax solutions show considerable improvement over DR2, with typical errors $\\sigma_{\\varpi}/\\varpi \\approx$~3-5%. The O-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.07922","kind":"arxiv","version":2},"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/2103.07922/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":"2103.07922","created_at":"2026-07-05T02:29:12.921529+00:00"},{"alias_kind":"arxiv_version","alias_value":"2103.07922v2","created_at":"2026-07-05T02:29:12.921529+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.07922","created_at":"2026-07-05T02:29:12.921529+00:00"},{"alias_kind":"pith_short_12","alias_value":"E7FV3XWWMXOM","created_at":"2026-07-05T02:29:12.921529+00:00"},{"alias_kind":"pith_short_16","alias_value":"E7FV3XWWMXOMJUCE","created_at":"2026-07-05T02:29:12.921529+00:00"},{"alias_kind":"pith_short_8","alias_value":"E7FV3XWW","created_at":"2026-07-05T02:29:12.921529+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/E7FV3XWWMXOMJUCEY5GUPCCAM3","json":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3.json","graph_json":"https://pith.science/api/pith-number/E7FV3XWWMXOMJUCEY5GUPCCAM3/graph.json","events_json":"https://pith.science/api/pith-number/E7FV3XWWMXOMJUCEY5GUPCCAM3/events.json","paper":"https://pith.science/paper/E7FV3XWW"},"agent_actions":{"view_html":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3","download_json":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3.json","view_paper":"https://pith.science/paper/E7FV3XWW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2103.07922&json=true","fetch_graph":"https://pith.science/api/pith-number/E7FV3XWWMXOMJUCEY5GUPCCAM3/graph.json","fetch_events":"https://pith.science/api/pith-number/E7FV3XWWMXOMJUCEY5GUPCCAM3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3/action/storage_attestation","attest_author":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3/action/author_attestation","sign_citation":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3/action/citation_signature","submit_replication":"https://pith.science/pith/E7FV3XWWMXOMJUCEY5GUPCCAM3/action/replication_record"}},"created_at":"2026-07-05T02:29:12.921529+00:00","updated_at":"2026-07-05T02:29:12.921529+00:00"}