{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:B7XUVSACXG3266R4LO7AXBWIMP","short_pith_number":"pith:B7XUVSAC","schema_version":"1.0","canonical_sha256":"0fef4ac802b9b7af7a3c5bbe0b86c863f4a8010a0beea7faf5be97cf33539a1a","source":{"kind":"arxiv","id":"astro-ph/0703032","version":1},"attestation_state":"computed","paper":{"title":"What is the optimum stellar rotation rate for a collapsar?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"UNAM), William H. Lee (Instituto de Astronomia","submitted_at":"2007-03-01T21:40:23Z","abstract_excerpt":"We consider low angular momentum, neutrino cooled accretion flows onto newborn black holes in the context of the collapsar model for long Gamma Ray Bursts, and find a considerable energy release for rotation rates lower than those usually considered. The efficiency for the transformation of gravitational binding energy into radiation is maximized when the equatorial angular momentum l0 ~ 2 Rg c, where Rg is the Schwarzschild radius."},"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/0703032","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-01T21:40:23Z","cross_cats_sorted":[],"title_canon_sha256":"ee9db07b415f62ad4ea893e7526d862d02edae9c3a98ccb963bb1a71ccb010ea","abstract_canon_sha256":"4fe541a8a54d8b2125ee3fcc438dc3eb652717cd177a27def5caa43c87458def"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:20.276759Z","signature_b64":"lcWq9G3Olvv6rSprgEOzfBZwo9oA3xgZ5KVSK7idvoXopZ5CGDvUyrCzwz4r9xGkGkxRPKcghymGQPFBj1AOBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0fef4ac802b9b7af7a3c5bbe0b86c863f4a8010a0beea7faf5be97cf33539a1a","last_reissued_at":"2026-05-18T04:36:20.276208Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:20.276208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"What is the optimum stellar rotation rate for a collapsar?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"UNAM), William H. Lee (Instituto de Astronomia","submitted_at":"2007-03-01T21:40:23Z","abstract_excerpt":"We consider low angular momentum, neutrino cooled accretion flows onto newborn black holes in the context of the collapsar model for long Gamma Ray Bursts, and find a considerable energy release for rotation rates lower than those usually considered. The efficiency for the transformation of gravitational binding energy into radiation is maximized when the equatorial angular momentum l0 ~ 2 Rg c, where Rg is the Schwarzschild radius."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703032","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":""},"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/0703032","created_at":"2026-05-18T04:36:20.276294+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703032v1","created_at":"2026-05-18T04:36:20.276294+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703032","created_at":"2026-05-18T04:36:20.276294+00:00"},{"alias_kind":"pith_short_12","alias_value":"B7XUVSACXG32","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"B7XUVSACXG3266R4","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"B7XUVSAC","created_at":"2026-05-18T12:25:55.427421+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/B7XUVSACXG3266R4LO7AXBWIMP","json":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP.json","graph_json":"https://pith.science/api/pith-number/B7XUVSACXG3266R4LO7AXBWIMP/graph.json","events_json":"https://pith.science/api/pith-number/B7XUVSACXG3266R4LO7AXBWIMP/events.json","paper":"https://pith.science/paper/B7XUVSAC"},"agent_actions":{"view_html":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP","download_json":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP.json","view_paper":"https://pith.science/paper/B7XUVSAC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0703032&json=true","fetch_graph":"https://pith.science/api/pith-number/B7XUVSACXG3266R4LO7AXBWIMP/graph.json","fetch_events":"https://pith.science/api/pith-number/B7XUVSACXG3266R4LO7AXBWIMP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP/action/storage_attestation","attest_author":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP/action/author_attestation","sign_citation":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP/action/citation_signature","submit_replication":"https://pith.science/pith/B7XUVSACXG3266R4LO7AXBWIMP/action/replication_record"}},"created_at":"2026-05-18T04:36:20.276294+00:00","updated_at":"2026-05-18T04:36:20.276294+00:00"}