{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:3EYFZ6IUB6NFGH35RK7H4435DH","short_pith_number":"pith:3EYFZ6IU","schema_version":"1.0","canonical_sha256":"d9305cf9140f9a531f7d8abe7e737d19d26805f0b61d8d7eeeec29a74f7f0d66","source":{"kind":"arxiv","id":"1205.3835","version":2},"attestation_state":"computed","paper":{"title":"Star Formation in the First Galaxies I: Collapse Delayed by Lyman-Werner Radiation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anshu Dubey, Chalence Safranek-Shrader, Christoph Federrath, Meghann Agarwal, Milos Milosavljevic, Volker Bromm","submitted_at":"2012-05-17T01:12:50Z","abstract_excerpt":"We investigate the process of metal-free star formation in the first galaxies with a high-resolution cosmological simulation. We consider the cosmologically motivated scenario in which a strong molecule-destroying Lyman-Werner (LW) background inhibits effective cooling in low-mass haloes, delaying star formation until the collapse or more massive haloes. Only when molecular hydrogen (H2) can self-shield from LW radiation, which requires a halo capable of cooling by atomic line emission, will star formation be possible. To follow the formation of multiple gravitationally bound objects, at high "},"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":"1205.3835","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-17T01:12:50Z","cross_cats_sorted":[],"title_canon_sha256":"6e266ba1e55ac2f2a2d3abe6364345c1bb0fbdcedb3a1c06958c3e4f33821f13","abstract_canon_sha256":"6810f3e53240d47c877c4f2ff1c7f73c8b55f63dcd96159e431165db187f83a5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:32:28.504144Z","signature_b64":"NAjSVO54ANbPP7l0JWDlauNlsOHMOT76VQiRGRcp/08JCEyLI3a9zljWjOkrpd3Io7+B4CeHdtNnW3dx7JW9Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9305cf9140f9a531f7d8abe7e737d19d26805f0b61d8d7eeeec29a74f7f0d66","last_reissued_at":"2026-05-18T03:32:28.503642Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:32:28.503642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Star Formation in the First Galaxies I: Collapse Delayed by Lyman-Werner Radiation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anshu Dubey, Chalence Safranek-Shrader, Christoph Federrath, Meghann Agarwal, Milos Milosavljevic, Volker Bromm","submitted_at":"2012-05-17T01:12:50Z","abstract_excerpt":"We investigate the process of metal-free star formation in the first galaxies with a high-resolution cosmological simulation. We consider the cosmologically motivated scenario in which a strong molecule-destroying Lyman-Werner (LW) background inhibits effective cooling in low-mass haloes, delaying star formation until the collapse or more massive haloes. Only when molecular hydrogen (H2) can self-shield from LW radiation, which requires a halo capable of cooling by atomic line emission, will star formation be possible. To follow the formation of multiple gravitationally bound objects, at high "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3835","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":""},"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":"1205.3835","created_at":"2026-05-18T03:32:28.503726+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.3835v2","created_at":"2026-05-18T03:32:28.503726+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3835","created_at":"2026-05-18T03:32:28.503726+00:00"},{"alias_kind":"pith_short_12","alias_value":"3EYFZ6IUB6NF","created_at":"2026-05-18T12:26:50.516681+00:00"},{"alias_kind":"pith_short_16","alias_value":"3EYFZ6IUB6NFGH35","created_at":"2026-05-18T12:26:50.516681+00:00"},{"alias_kind":"pith_short_8","alias_value":"3EYFZ6IU","created_at":"2026-05-18T12:26:50.516681+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/3EYFZ6IUB6NFGH35RK7H4435DH","json":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH.json","graph_json":"https://pith.science/api/pith-number/3EYFZ6IUB6NFGH35RK7H4435DH/graph.json","events_json":"https://pith.science/api/pith-number/3EYFZ6IUB6NFGH35RK7H4435DH/events.json","paper":"https://pith.science/paper/3EYFZ6IU"},"agent_actions":{"view_html":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH","download_json":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH.json","view_paper":"https://pith.science/paper/3EYFZ6IU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.3835&json=true","fetch_graph":"https://pith.science/api/pith-number/3EYFZ6IUB6NFGH35RK7H4435DH/graph.json","fetch_events":"https://pith.science/api/pith-number/3EYFZ6IUB6NFGH35RK7H4435DH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH/action/storage_attestation","attest_author":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH/action/author_attestation","sign_citation":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH/action/citation_signature","submit_replication":"https://pith.science/pith/3EYFZ6IUB6NFGH35RK7H4435DH/action/replication_record"}},"created_at":"2026-05-18T03:32:28.503726+00:00","updated_at":"2026-05-18T03:32:28.503726+00:00"}