{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:IRCSXCWQG75UYNKCXJBDHWSWWJ","short_pith_number":"pith:IRCSXCWQ","schema_version":"1.0","canonical_sha256":"44452b8ad037fb4c3542ba4233da56b260e618c19e9ee537d327e547864389a6","source":{"kind":"arxiv","id":"0812.1323","version":1},"attestation_state":"computed","paper":{"title":"Star Formation in the Orion Nebula I: Stellar Content","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"August Muench, Konstantin Getman, Lynne Hillenbrand, Thomas Preibisch","submitted_at":"2008-12-07T00:33:13Z","abstract_excerpt":"The Orion Nebula is one of the most frequently observed nearby (<1 kiloparsec) star forming regions and, consequently, the subject of a large bibliography of observations and interpretation. The summary in this chapter is bounded spatially by the blister HII region, with sources beyond the central nebula that are part of the same dynamical clustering covered in other chapters in this book. Herein are discussed panchromatic observations of the massive OB stars, the general T Tauri population, the sub-stellar sources and variable stars within the Orion Nebula. First, a brief history of 400 years"},"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":"0812.1323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-07T00:33:13Z","cross_cats_sorted":[],"title_canon_sha256":"ae5a3d14c5b2af8b3af26e8c687bf062771102ae2307c7574e64d940ddbfaf4e","abstract_canon_sha256":"0f7d9892f5a36fc9d6e73c4bf9e660af06ab35f8a8d1387c40e19c264bcc8d20"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:33:28.156367Z","signature_b64":"MyIeNX4yDHk8TOYsDeZdUOpu22TGxzRy5r134OurBYZb0tr3npb2/hE74sVReejvqybekKBM8LYO9ulI1WcTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44452b8ad037fb4c3542ba4233da56b260e618c19e9ee537d327e547864389a6","last_reissued_at":"2026-07-04T15:33:28.155990Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:33:28.155990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Star Formation in the Orion Nebula I: Stellar Content","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"August Muench, Konstantin Getman, Lynne Hillenbrand, Thomas Preibisch","submitted_at":"2008-12-07T00:33:13Z","abstract_excerpt":"The Orion Nebula is one of the most frequently observed nearby (<1 kiloparsec) star forming regions and, consequently, the subject of a large bibliography of observations and interpretation. The summary in this chapter is bounded spatially by the blister HII region, with sources beyond the central nebula that are part of the same dynamical clustering covered in other chapters in this book. Herein are discussed panchromatic observations of the massive OB stars, the general T Tauri population, the sub-stellar sources and variable stars within the Orion Nebula. First, a brief history of 400 years"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.1323","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/0812.1323/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":"0812.1323","created_at":"2026-07-04T15:33:28.156048+00:00"},{"alias_kind":"arxiv_version","alias_value":"0812.1323v1","created_at":"2026-07-04T15:33:28.156048+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.1323","created_at":"2026-07-04T15:33:28.156048+00:00"},{"alias_kind":"pith_short_12","alias_value":"IRCSXCWQG75U","created_at":"2026-07-04T15:33:28.156048+00:00"},{"alias_kind":"pith_short_16","alias_value":"IRCSXCWQG75UYNKC","created_at":"2026-07-04T15:33:28.156048+00:00"},{"alias_kind":"pith_short_8","alias_value":"IRCSXCWQ","created_at":"2026-07-04T15:33:28.156048+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.28278","citing_title":"JWST's Constraints on the Substellar IMF in NGC 2024","ref_index":35,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ","json":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ.json","graph_json":"https://pith.science/api/pith-number/IRCSXCWQG75UYNKCXJBDHWSWWJ/graph.json","events_json":"https://pith.science/api/pith-number/IRCSXCWQG75UYNKCXJBDHWSWWJ/events.json","paper":"https://pith.science/paper/IRCSXCWQ"},"agent_actions":{"view_html":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ","download_json":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ.json","view_paper":"https://pith.science/paper/IRCSXCWQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0812.1323&json=true","fetch_graph":"https://pith.science/api/pith-number/IRCSXCWQG75UYNKCXJBDHWSWWJ/graph.json","fetch_events":"https://pith.science/api/pith-number/IRCSXCWQG75UYNKCXJBDHWSWWJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ/action/storage_attestation","attest_author":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ/action/author_attestation","sign_citation":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ/action/citation_signature","submit_replication":"https://pith.science/pith/IRCSXCWQG75UYNKCXJBDHWSWWJ/action/replication_record"}},"created_at":"2026-07-04T15:33:28.156048+00:00","updated_at":"2026-07-04T15:33:28.156048+00:00"}