{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:H4JSN4VF2H3M5HWLJO47JSXVJC","short_pith_number":"pith:H4JSN4VF","schema_version":"1.0","canonical_sha256":"3f1326f2a5d1f6ce9ecb4bb9f4caf54896284c95c38138710bde7cbd0da840d5","source":{"kind":"arxiv","id":"astro-ph/0209036","version":1},"attestation_state":"computed","paper":{"title":"Self-similar champagne flows in HII regions","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Galli, F. Shu, G. Laughlin, J. Canto, S. Lizano","submitted_at":"2002-09-02T16:46:25Z","abstract_excerpt":"(Abridged) We consider the expansion of an initially self-gravitating, static, singular, isothermal cloud core. For t>0, the gas is ionized and heated to a higher uniform temperature by the formation of a luminous, but massless, star in its center. The approximation that the mass and gravity of the central star is negligible for the subsequent motion of the HII region holds for distances much greater than about 100 AU and for the massive cloud cores that give rise to high-mass stars. If the initial ionization and heating is approximated to occur instantaneously at t=0, then the subsequent flow"},"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":"astro-ph/0209036","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-09-02T16:46:25Z","cross_cats_sorted":[],"title_canon_sha256":"765be1702801eb7e65492a1bb8f4dcb9acaee748701c28e9aa46342e21dfbbd9","abstract_canon_sha256":"6142e6d457e8b1c19e04d7a3c3205148ff1db0d239a7db7e7330724d14f61551"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:43.492146Z","signature_b64":"DzkG5UBxLUrkH06mOCHw9tWqLsCsdrlSfroX9pLl9/NeMtEwyaGARVvNTb7yTe62MCgNIfzKWZ5z/60s98V3Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3f1326f2a5d1f6ce9ecb4bb9f4caf54896284c95c38138710bde7cbd0da840d5","last_reissued_at":"2026-07-04T16:30:43.491675Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:43.491675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Self-similar champagne flows in HII regions","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Galli, F. Shu, G. Laughlin, J. Canto, S. Lizano","submitted_at":"2002-09-02T16:46:25Z","abstract_excerpt":"(Abridged) We consider the expansion of an initially self-gravitating, static, singular, isothermal cloud core. For t>0, the gas is ionized and heated to a higher uniform temperature by the formation of a luminous, but massless, star in its center. The approximation that the mass and gravity of the central star is negligible for the subsequent motion of the HII region holds for distances much greater than about 100 AU and for the massive cloud cores that give rise to high-mass stars. If the initial ionization and heating is approximated to occur instantaneously at t=0, then the subsequent flow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0209036","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/astro-ph/0209036/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":"astro-ph/0209036","created_at":"2026-07-04T16:30:43.491738+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0209036v1","created_at":"2026-07-04T16:30:43.491738+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0209036","created_at":"2026-07-04T16:30:43.491738+00:00"},{"alias_kind":"pith_short_12","alias_value":"H4JSN4VF2H3M","created_at":"2026-07-04T16:30:43.491738+00:00"},{"alias_kind":"pith_short_16","alias_value":"H4JSN4VF2H3M5HWL","created_at":"2026-07-04T16:30:43.491738+00:00"},{"alias_kind":"pith_short_8","alias_value":"H4JSN4VF","created_at":"2026-07-04T16:30:43.491738+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/H4JSN4VF2H3M5HWLJO47JSXVJC","json":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC.json","graph_json":"https://pith.science/api/pith-number/H4JSN4VF2H3M5HWLJO47JSXVJC/graph.json","events_json":"https://pith.science/api/pith-number/H4JSN4VF2H3M5HWLJO47JSXVJC/events.json","paper":"https://pith.science/paper/H4JSN4VF"},"agent_actions":{"view_html":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC","download_json":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC.json","view_paper":"https://pith.science/paper/H4JSN4VF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0209036&json=true","fetch_graph":"https://pith.science/api/pith-number/H4JSN4VF2H3M5HWLJO47JSXVJC/graph.json","fetch_events":"https://pith.science/api/pith-number/H4JSN4VF2H3M5HWLJO47JSXVJC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC/action/storage_attestation","attest_author":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC/action/author_attestation","sign_citation":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC/action/citation_signature","submit_replication":"https://pith.science/pith/H4JSN4VF2H3M5HWLJO47JSXVJC/action/replication_record"}},"created_at":"2026-07-04T16:30:43.491738+00:00","updated_at":"2026-07-04T16:30:43.491738+00:00"}