{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QESZZXTDYJYPDNCB7JYUS23AZQ","short_pith_number":"pith:QESZZXTD","canonical_record":{"source":{"id":"2605.27264","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-26T16:41:35Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"236d7c47998897c8b15d3854fc19a3e595fd101b0b4b98728662111c74001512","abstract_canon_sha256":"ab53d75518f7f84f95ab400c0728af35ed0dd0c04906dcf17bc9e693e6d34fa9"},"schema_version":"1.0"},"canonical_sha256":"81259cde63c270f1b441fa71496b60cc013d6340864c607f122a5d3f69134e5a","source":{"kind":"arxiv","id":"2605.27264","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.27264","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"2605.27264v1","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27264","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"QESZZXTDYJYP","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_16","alias_value":"QESZZXTDYJYPDNCB","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_8","alias_value":"QESZZXTD","created_at":"2026-05-27T02:06:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QESZZXTDYJYPDNCB7JYUS23AZQ","target":"record","payload":{"canonical_record":{"source":{"id":"2605.27264","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-26T16:41:35Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"236d7c47998897c8b15d3854fc19a3e595fd101b0b4b98728662111c74001512","abstract_canon_sha256":"ab53d75518f7f84f95ab400c0728af35ed0dd0c04906dcf17bc9e693e6d34fa9"},"schema_version":"1.0"},"canonical_sha256":"81259cde63c270f1b441fa71496b60cc013d6340864c607f122a5d3f69134e5a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T02:06:08.976933Z","signature_b64":"oYA0+4SFqRc0SdP6rbPUIL7fazf2Jxp4its68BpqDLNQ1c4R0Oa/9JjKmE800dvwIer+6x+sfr8S+um2NTasAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81259cde63c270f1b441fa71496b60cc013d6340864c607f122a5d3f69134e5a","last_reissued_at":"2026-05-27T02:06:08.976334Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T02:06:08.976334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.27264","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":"2026-05-27T02:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cg9P3zOgThOhFZcaUR355/FqbbWTHZjFughI09gm0qVyTnnl/url3J2J/beJdl6So4dnHEMEdaiTBPBHZRWSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:43:29.937234Z"},"content_sha256":"cebb43abad2ade6002d2e1b755eb358d0be043abc72a60994421b935ffe10cf2","schema_version":"1.0","event_id":"sha256:cebb43abad2ade6002d2e1b755eb358d0be043abc72a60994421b935ffe10cf2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QESZZXTDYJYPDNCB7JYUS23AZQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temperature-resolved sensitivities of $^{56}{\\rm Ni}$ production to helium-burning reactions in pair-instability supernovae","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","nucl-th"],"primary_cat":"astro-ph.SR","authors_text":"Hiroki Kawashimo, Nobuya Nishimura, Yudai Suwa","submitted_at":"2026-05-26T16:41:35Z","abstract_excerpt":"We propose a temperature-resolved Monte Carlo (MC) approach to identify the temperature regimes in which low-energy helium-burning reaction rates most strongly affect nucleosynthesis in very massive stars that undergo pair-instability supernovae (PISNe). By performing MC simulations of PISNe, we quantify how temperature-dependent variations in key helium-burning reaction rates, i.e., the triple-$\\alpha$ and $^{12}{\\rm C}(\\alpha,\\gamma)^{16}{\\rm O}$ rates, influence $^{56}{\\rm Ni}$ synthesis. Thousands of stellar evolution calculations using $\\texttt{MESA}$ reveal that both the $^{12}{\\rm C}(\\a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27264","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.27264/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-27T02:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fk6jm/dRy+7hRq9lbio+THcLqMSTop+DdaTU+HK2vo44ZaDQn3TPfCr+yYaGdvp8IaVD5nzDKYQba7kXkO5hDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:43:29.937628Z"},"content_sha256":"e60530f80fcc25ae4e028ddd65711a7b9619ec9fae2bd327b1b8a8759d7ca24f","schema_version":"1.0","event_id":"sha256:e60530f80fcc25ae4e028ddd65711a7b9619ec9fae2bd327b1b8a8759d7ca24f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/bundle.json","state_url":"https://pith.science/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/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":"2026-06-02T22:43:29Z","links":{"resolver":"https://pith.science/pith/QESZZXTDYJYPDNCB7JYUS23AZQ","bundle":"https://pith.science/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/bundle.json","state":"https://pith.science/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QESZZXTDYJYPDNCB7JYUS23AZQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QESZZXTDYJYPDNCB7JYUS23AZQ","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":"ab53d75518f7f84f95ab400c0728af35ed0dd0c04906dcf17bc9e693e6d34fa9","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-26T16:41:35Z","title_canon_sha256":"236d7c47998897c8b15d3854fc19a3e595fd101b0b4b98728662111c74001512"},"schema_version":"1.0","source":{"id":"2605.27264","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.27264","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"2605.27264v1","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.27264","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"QESZZXTDYJYP","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_16","alias_value":"QESZZXTDYJYPDNCB","created_at":"2026-05-27T02:06:08Z"},{"alias_kind":"pith_short_8","alias_value":"QESZZXTD","created_at":"2026-05-27T02:06:08Z"}],"graph_snapshots":[{"event_id":"sha256:e60530f80fcc25ae4e028ddd65711a7b9619ec9fae2bd327b1b8a8759d7ca24f","target":"graph","created_at":"2026-05-27T02:06:08Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.27264/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a temperature-resolved Monte Carlo (MC) approach to identify the temperature regimes in which low-energy helium-burning reaction rates most strongly affect nucleosynthesis in very massive stars that undergo pair-instability supernovae (PISNe). By performing MC simulations of PISNe, we quantify how temperature-dependent variations in key helium-burning reaction rates, i.e., the triple-$\\alpha$ and $^{12}{\\rm C}(\\alpha,\\gamma)^{16}{\\rm O}$ rates, influence $^{56}{\\rm Ni}$ synthesis. Thousands of stellar evolution calculations using $\\texttt{MESA}$ reveal that both the $^{12}{\\rm C}(\\a","authors_text":"Hiroki Kawashimo, Nobuya Nishimura, Yudai Suwa","cross_cats":["astro-ph.HE","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-26T16:41:35Z","title":"Temperature-resolved sensitivities of $^{56}{\\rm Ni}$ production to helium-burning reactions in pair-instability supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.27264","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:cebb43abad2ade6002d2e1b755eb358d0be043abc72a60994421b935ffe10cf2","target":"record","created_at":"2026-05-27T02:06:08Z","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":"ab53d75518f7f84f95ab400c0728af35ed0dd0c04906dcf17bc9e693e6d34fa9","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-26T16:41:35Z","title_canon_sha256":"236d7c47998897c8b15d3854fc19a3e595fd101b0b4b98728662111c74001512"},"schema_version":"1.0","source":{"id":"2605.27264","kind":"arxiv","version":1}},"canonical_sha256":"81259cde63c270f1b441fa71496b60cc013d6340864c607f122a5d3f69134e5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"81259cde63c270f1b441fa71496b60cc013d6340864c607f122a5d3f69134e5a","first_computed_at":"2026-05-27T02:06:08.976334Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T02:06:08.976334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oYA0+4SFqRc0SdP6rbPUIL7fazf2Jxp4its68BpqDLNQ1c4R0Oa/9JjKmE800dvwIer+6x+sfr8S+um2NTasAw==","signature_status":"signed_v1","signed_at":"2026-05-27T02:06:08.976933Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.27264","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cebb43abad2ade6002d2e1b755eb358d0be043abc72a60994421b935ffe10cf2","sha256:e60530f80fcc25ae4e028ddd65711a7b9619ec9fae2bd327b1b8a8759d7ca24f"],"state_sha256":"a599d01b054ccac643fe06f60ec71ae24064e90be8d4240bce613bc049c25306"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wvmfc/dBQPcmq0KVGfqL9C7a1Cbol/O4rYQ56FsKDLYMCl1CKykFRMowQfzhC7AESne2K3R45wK3eYps5wsICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:43:29.939711Z","bundle_sha256":"dd2d720ab94c2ee047eac0f1b7b4c89186743976a859f233e78e5e46f8f1e555"}}