{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:CZEB2OYMVLVOTRAXZ6A7A22CGU","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2f5dc0ffa97d31af2e571eefae146dd9fa2d09fb0a484c1ccaf720bb88371ca6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-03-15T15:46:30Z","title_canon_sha256":"8b1d5dcc5bac51ce0aff4cc372a8a6ad9a2ac3584068241db4d6e2e88a0ea922"},"schema_version":"1.0","source":{"id":"astro-ph/0103241","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0103241","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0103241v4","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0103241","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"CZEB2OYMVLVO","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"CZEB2OYMVLVOTRAX","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"CZEB2OYM","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:af2fe1c6df54b96849dffde9cea77f8abd4ea0a984a6c344a8d265530c0c5c39","target":"graph","created_at":"2026-05-18T04:29:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We calculate nucleosynthesis in core-collapse explosions of massive Pop III stars, and compare the results with abundances of metal-poor halo stars to constrain the parameters of Pop III supernovae. We focus on iron-peak elements and, in particular, we try to reproduce the large [Zn/Fe] observed in extremely metal-poor stars. The interesting trends of the observed ratios [Zn, Co, Mn, Cr, V/Fe] can be related to the variation of the relative mass of the complete and incomplete Si-burning regions in supernova ejecta. We find that [Zn/Fe] is larger for deeper mass-cuts, smaller neutron excess, an","authors_text":"Hideyuki Umeda, Ken'ichi Nomoto (Univ. of Tokyo)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-03-15T15:46:30Z","title":"Nucleosynthesis of Zinc and Iron-Peak Elements in Pop III Type II Supernovae : Comparison with abundances of Very Metal-Poor Halo Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0103241","kind":"arxiv","version":4},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a7552df8ecb17255043658be570d296ae4994dbef76b390726039471a9af7475","target":"record","created_at":"2026-05-18T04:29:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2f5dc0ffa97d31af2e571eefae146dd9fa2d09fb0a484c1ccaf720bb88371ca6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-03-15T15:46:30Z","title_canon_sha256":"8b1d5dcc5bac51ce0aff4cc372a8a6ad9a2ac3584068241db4d6e2e88a0ea922"},"schema_version":"1.0","source":{"id":"astro-ph/0103241","kind":"arxiv","version":4}},"canonical_sha256":"16481d3b0caaeae9c417cf81f06b42353905a4f4a29c55cf656be674c738bde1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16481d3b0caaeae9c417cf81f06b42353905a4f4a29c55cf656be674c738bde1","first_computed_at":"2026-05-18T04:29:05.258525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:05.258525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZKhK8Q5OqpcrfSXF3cUA+oKhtFFTmNxC5zzlNGlxo5tTAjBsj0UW0CtV3LiTSoVDWIj/aUZmXkcjQ+3ha79fCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:05.259110Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0103241","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7552df8ecb17255043658be570d296ae4994dbef76b390726039471a9af7475","sha256:af2fe1c6df54b96849dffde9cea77f8abd4ea0a984a6c344a8d265530c0c5c39"],"state_sha256":"cdb13bf4a13e6e2e808e58e6702888191d3160ee75d6710dff29b81422e3a11d"}