{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LJEU7KWCH2Q23K7HRU54NVTJUX","short_pith_number":"pith:LJEU7KWC","canonical_record":{"source":{"id":"1201.1225","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T17:31:15Z","cross_cats_sorted":[],"title_canon_sha256":"8e4f3881f020280d7718b806b45e800ca31d77e98e71db33fc54fb9a25d1bb3e","abstract_canon_sha256":"fc9966e574b23360a500071cfde8537adbc34d8290bccd3a008fd0e890d02cc0"},"schema_version":"1.0"},"canonical_sha256":"5a494faac23ea1adabe78d3bc6d669a5f96abd03025dd7378ca62a19de417eaf","source":{"kind":"arxiv","id":"1201.1225","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1225","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1225v1","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1225","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"pith_short_12","alias_value":"LJEU7KWCH2Q2","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LJEU7KWCH2Q23K7H","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LJEU7KWC","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LJEU7KWCH2Q23K7HRU54NVTJUX","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1225","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T17:31:15Z","cross_cats_sorted":[],"title_canon_sha256":"8e4f3881f020280d7718b806b45e800ca31d77e98e71db33fc54fb9a25d1bb3e","abstract_canon_sha256":"fc9966e574b23360a500071cfde8537adbc34d8290bccd3a008fd0e890d02cc0"},"schema_version":"1.0"},"canonical_sha256":"5a494faac23ea1adabe78d3bc6d669a5f96abd03025dd7378ca62a19de417eaf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:55.442267Z","signature_b64":"5oQahcWu53eKIUMh1kMvhsX7HT4VSc8KN4gc7m2DvM/C9QnHN4noVvOyIA5rmCWleZh3vbvZIBVxMZIFCIV0Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a494faac23ea1adabe78d3bc6d669a5f96abd03025dd7378ca62a19de417eaf","last_reissued_at":"2026-05-18T01:58:55.441506Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:55.441506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1225","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mwsSgEwWSzSiLzKWCVpb/kSqPW0FTY2PhDBDka8MaKW/aeEm8fEIo8YvwRCRLGqoen92YSTz9CFUMwgrZNTZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:48:03.289220Z"},"content_sha256":"0e15ef705a78e032dfbb805fbdb010ba64f4899eb14cb6faf6ce12c84c862c37","schema_version":"1.0","event_id":"sha256:0e15ef705a78e032dfbb805fbdb010ba64f4899eb14cb6faf6ce12c84c862c37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LJEU7KWCH2Q23K7HRU54NVTJUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The effect of 12C + 12C rate uncertainties on the evolution and nucleosynthesis of massive stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Hungerford, C. Fryer, F. Herwig, F. X. Timmes, G. Rockefeller, K. Nomoto, M. E. Bennett, M. Pignatari, M. Wiescher, R. Hirschi, S. Diehl","submitted_at":"2012-01-05T17:31:15Z","abstract_excerpt":"[Shortened] The 12C + 12C fusion reaction has been the subject of considerable experimental efforts to constrain uncertainties at temperatures relevant for stellar nucleosynthesis. In order to investigate the effect of an enhanced carbon burning rate on massive star structure and nucleosynthesis, new stellar evolution models and their yields are presented exploring the impact of three different 12C + 12C reaction rates. Non-rotating stellar models were generated using the Geneva Stellar Evolution Code and were later post-processed with the NuGrid Multi-zone Post-Processing Network tool. The en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1225","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kqc6oZu+xutffRAIMzXcWD0hiR3TCMRzHKd2PH7SN5Msla0PHP/SUYPQOmXvwpAiuJfgmy7hF5qahdpccnsBDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:48:03.289844Z"},"content_sha256":"530c8b9bbd56ac93bd257f08a1585e8cf4e8c348b7e9f58fb1a24bd162b5ac00","schema_version":"1.0","event_id":"sha256:530c8b9bbd56ac93bd257f08a1585e8cf4e8c348b7e9f58fb1a24bd162b5ac00"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/bundle.json","state_url":"https://pith.science/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T09:48:03Z","links":{"resolver":"https://pith.science/pith/LJEU7KWCH2Q23K7HRU54NVTJUX","bundle":"https://pith.science/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/bundle.json","state":"https://pith.science/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LJEU7KWCH2Q23K7HRU54NVTJUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LJEU7KWCH2Q23K7HRU54NVTJUX","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":"fc9966e574b23360a500071cfde8537adbc34d8290bccd3a008fd0e890d02cc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T17:31:15Z","title_canon_sha256":"8e4f3881f020280d7718b806b45e800ca31d77e98e71db33fc54fb9a25d1bb3e"},"schema_version":"1.0","source":{"id":"1201.1225","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1225","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1225v1","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1225","created_at":"2026-05-18T01:58:55Z"},{"alias_kind":"pith_short_12","alias_value":"LJEU7KWCH2Q2","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LJEU7KWCH2Q23K7H","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LJEU7KWC","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:530c8b9bbd56ac93bd257f08a1585e8cf4e8c348b7e9f58fb1a24bd162b5ac00","target":"graph","created_at":"2026-05-18T01:58:55Z","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":"[Shortened] The 12C + 12C fusion reaction has been the subject of considerable experimental efforts to constrain uncertainties at temperatures relevant for stellar nucleosynthesis. In order to investigate the effect of an enhanced carbon burning rate on massive star structure and nucleosynthesis, new stellar evolution models and their yields are presented exploring the impact of three different 12C + 12C reaction rates. Non-rotating stellar models were generated using the Geneva Stellar Evolution Code and were later post-processed with the NuGrid Multi-zone Post-Processing Network tool. The en","authors_text":"A. Hungerford, C. Fryer, F. Herwig, F. X. Timmes, G. Rockefeller, K. Nomoto, M. E. Bennett, M. Pignatari, M. Wiescher, R. Hirschi, S. Diehl","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T17:31:15Z","title":"The effect of 12C + 12C rate uncertainties on the evolution and nucleosynthesis of massive stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1225","kind":"arxiv","version":1},"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":"sha256:0e15ef705a78e032dfbb805fbdb010ba64f4899eb14cb6faf6ce12c84c862c37","target":"record","created_at":"2026-05-18T01:58:55Z","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":"fc9966e574b23360a500071cfde8537adbc34d8290bccd3a008fd0e890d02cc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T17:31:15Z","title_canon_sha256":"8e4f3881f020280d7718b806b45e800ca31d77e98e71db33fc54fb9a25d1bb3e"},"schema_version":"1.0","source":{"id":"1201.1225","kind":"arxiv","version":1}},"canonical_sha256":"5a494faac23ea1adabe78d3bc6d669a5f96abd03025dd7378ca62a19de417eaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a494faac23ea1adabe78d3bc6d669a5f96abd03025dd7378ca62a19de417eaf","first_computed_at":"2026-05-18T01:58:55.441506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:55.441506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5oQahcWu53eKIUMh1kMvhsX7HT4VSc8KN4gc7m2DvM/C9QnHN4noVvOyIA5rmCWleZh3vbvZIBVxMZIFCIV0Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:55.442267Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1225","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e15ef705a78e032dfbb805fbdb010ba64f4899eb14cb6faf6ce12c84c862c37","sha256:530c8b9bbd56ac93bd257f08a1585e8cf4e8c348b7e9f58fb1a24bd162b5ac00"],"state_sha256":"a1f5aa4d99b7cb373c24eb90049967d9badd24b1d0de73d34f5a922d1ad4bdff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pp5Pumo6BAPAMpBiWpOUOUztKpJTVz4MxCCyjod+GEccSB1+MCgf6tDHwveMkgSbm7yrsmU00QKpF/Fa7XL0Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:48:03.293736Z","bundle_sha256":"2f832e1a6ec7b526ba68c3049529202390ec5e1b25b61fe736ec603ace0201af"}}