{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:5NNXRQ3NEAMGI57JQHCV6UQAQD","short_pith_number":"pith:5NNXRQ3N","schema_version":"1.0","canonical_sha256":"eb5b78c36d20186477e981c55f520080df3c62e6af2a8d9337eb712b5dfb53e0","source":{"kind":"arxiv","id":"1207.3683","version":1},"attestation_state":"computed","paper":{"title":"On the nature and detectability of Type Ib/c supernova progenitors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Kozyreva, G. Graefener, J. S. Vink, R. G. Izzard, S.-C. Yoon","submitted_at":"2012-07-16T14:03:29Z","abstract_excerpt":"The progenitors of many Type II supernovae have been observationally identified but the search for Type Ibc supernova (SN Ibc) progenitors has thus far been unsuccessful, despite the expectation that they are luminous Wolf-Rayet (WR) stars. We investigate how the evolution of massive helium stars affects their visual appearances, and discuss the implications for the detectability of SN Ibc progenitors. Massive WR stars that rapidly lose their helium envelopes through stellar-wind mass-loss end their lives when their effective temperatures -- related to their hydrostatic surfaces -- exceed abou"},"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":"1207.3683","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-07-16T14:03:29Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b8c18c88f1cea5549a8de75db0563c06044be3a9f77eece6f0c93acc5e43cbc6","abstract_canon_sha256":"d36f398bed2f618a85eb41ff8d663a960d7b2634ccbc55b7d234fc30abbfccff"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:18.063221Z","signature_b64":"SVS/iu9iOlBuLrpuRWI4HG/Yy0wwYb6xvzlMex5La7nnwZGB8BOWrAXmfJm3wqJWGYP9WhMz4cvORwcB+GpNBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb5b78c36d20186477e981c55f520080df3c62e6af2a8d9337eb712b5dfb53e0","last_reissued_at":"2026-05-18T01:56:18.062766Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:18.062766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the nature and detectability of Type Ib/c supernova progenitors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Kozyreva, G. Graefener, J. S. Vink, R. G. Izzard, S.-C. Yoon","submitted_at":"2012-07-16T14:03:29Z","abstract_excerpt":"The progenitors of many Type II supernovae have been observationally identified but the search for Type Ibc supernova (SN Ibc) progenitors has thus far been unsuccessful, despite the expectation that they are luminous Wolf-Rayet (WR) stars. We investigate how the evolution of massive helium stars affects their visual appearances, and discuss the implications for the detectability of SN Ibc progenitors. Massive WR stars that rapidly lose their helium envelopes through stellar-wind mass-loss end their lives when their effective temperatures -- related to their hydrostatic surfaces -- exceed abou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.3683","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":"1207.3683","created_at":"2026-05-18T01:56:18.062834+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.3683v1","created_at":"2026-05-18T01:56:18.062834+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.3683","created_at":"2026-05-18T01:56:18.062834+00:00"},{"alias_kind":"pith_short_12","alias_value":"5NNXRQ3NEAMG","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_16","alias_value":"5NNXRQ3NEAMGI57J","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_8","alias_value":"5NNXRQ3N","created_at":"2026-05-18T12:26:56.085431+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/5NNXRQ3NEAMGI57JQHCV6UQAQD","json":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD.json","graph_json":"https://pith.science/api/pith-number/5NNXRQ3NEAMGI57JQHCV6UQAQD/graph.json","events_json":"https://pith.science/api/pith-number/5NNXRQ3NEAMGI57JQHCV6UQAQD/events.json","paper":"https://pith.science/paper/5NNXRQ3N"},"agent_actions":{"view_html":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD","download_json":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD.json","view_paper":"https://pith.science/paper/5NNXRQ3N","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.3683&json=true","fetch_graph":"https://pith.science/api/pith-number/5NNXRQ3NEAMGI57JQHCV6UQAQD/graph.json","fetch_events":"https://pith.science/api/pith-number/5NNXRQ3NEAMGI57JQHCV6UQAQD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD/action/storage_attestation","attest_author":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD/action/author_attestation","sign_citation":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD/action/citation_signature","submit_replication":"https://pith.science/pith/5NNXRQ3NEAMGI57JQHCV6UQAQD/action/replication_record"}},"created_at":"2026-05-18T01:56:18.062834+00:00","updated_at":"2026-05-18T01:56:18.062834+00:00"}