{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:JK636CLGILYMJPIYGVOXG27JG7","short_pith_number":"pith:JK636CLG","canonical_record":{"source":{"id":"astro-ph/0701334","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T14:40:23Z","cross_cats_sorted":[],"title_canon_sha256":"b9bdf36d04a9ba58d26c28036a5a53a5a5e57cb2a50d342183a9bf7e95e8f78f","abstract_canon_sha256":"12f5be269a7a901a303a0770a63e7e354754132754abe2c065a14d36b8b51f34"},"schema_version":"1.0"},"canonical_sha256":"4abdbf096642f0c4bd18355d736be937e2194c27c2bba0ede12ee7cd0965a5ee","source":{"kind":"arxiv","id":"astro-ph/0701334","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701334","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701334v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701334","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"JK636CLGILYM","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"JK636CLGILYMJPIY","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"JK636CLG","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:JK636CLGILYMJPIYGVOXG27JG7","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0701334","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T14:40:23Z","cross_cats_sorted":[],"title_canon_sha256":"b9bdf36d04a9ba58d26c28036a5a53a5a5e57cb2a50d342183a9bf7e95e8f78f","abstract_canon_sha256":"12f5be269a7a901a303a0770a63e7e354754132754abe2c065a14d36b8b51f34"},"schema_version":"1.0"},"canonical_sha256":"4abdbf096642f0c4bd18355d736be937e2194c27c2bba0ede12ee7cd0965a5ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:07.439493Z","signature_b64":"C/x+NxH3/3JlNgzE8Gtw2bJPNtTtf8wIjjYfyi+N8WKpZuSR1OUxzuAR9ssyvEahLq4G71SujQpg3uX7o5tYAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4abdbf096642f0c4bd18355d736be937e2194c27c2bba0ede12ee7cd0965a5ee","last_reissued_at":"2026-05-18T04:29:07.438557Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:07.438557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0701334","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OJLQng1zZg0Q9R3gxsdcRIhuyQ8+14pv1+ku+24Qzh9keiPUtmM52MCq0m9RkB3tXsxJlt4+T9yvFK1K4T8LCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:36:25.203838Z"},"content_sha256":"a8b82b8ab5e7ed9d755f5051237059764b335b97fc524edfc80e57d46a80e0b5","schema_version":"1.0","event_id":"sha256:a8b82b8ab5e7ed9d755f5051237059764b335b97fc524edfc80e57d46a80e0b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:JK636CLGILYMJPIYGVOXG27JG7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The evolution of very massive stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Vanbeveren, H. Belkus, J. Van Bever","submitted_at":"2007-01-11T14:40:23Z","abstract_excerpt":"Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their evolution and final fate, and decides upon whether they form black holes (with normal mass or with intermediate mass) or explode as a pair instability supernova. In the present paper, we discuss the evolution of very massive stars and we present a convenient evolution recipe that can be implemented in a gravitational N-body code to study the dynamics of dense massi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701334","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IAhzHqkyOL3wn2RWTod+LWDAVCBpGdFdEmbybxC0c9CfofOKSsIH0fdd8Il3hpyyw+RQBX1mu5+aRpPMscPnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:36:25.204187Z"},"content_sha256":"61fd7d9cb7a9b10b8cc2a15f25ddbccce53c8e56d46aa594bdf9b7d9b8ea2480","schema_version":"1.0","event_id":"sha256:61fd7d9cb7a9b10b8cc2a15f25ddbccce53c8e56d46aa594bdf9b7d9b8ea2480"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JK636CLGILYMJPIYGVOXG27JG7/bundle.json","state_url":"https://pith.science/pith/JK636CLGILYMJPIYGVOXG27JG7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JK636CLGILYMJPIYGVOXG27JG7/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":"2026-06-03T02:36:25Z","links":{"resolver":"https://pith.science/pith/JK636CLGILYMJPIYGVOXG27JG7","bundle":"https://pith.science/pith/JK636CLGILYMJPIYGVOXG27JG7/bundle.json","state":"https://pith.science/pith/JK636CLGILYMJPIYGVOXG27JG7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JK636CLGILYMJPIYGVOXG27JG7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:JK636CLGILYMJPIYGVOXG27JG7","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":"12f5be269a7a901a303a0770a63e7e354754132754abe2c065a14d36b8b51f34","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T14:40:23Z","title_canon_sha256":"b9bdf36d04a9ba58d26c28036a5a53a5a5e57cb2a50d342183a9bf7e95e8f78f"},"schema_version":"1.0","source":{"id":"astro-ph/0701334","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701334","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701334v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701334","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"JK636CLGILYM","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"JK636CLGILYMJPIY","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"JK636CLG","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:61fd7d9cb7a9b10b8cc2a15f25ddbccce53c8e56d46aa594bdf9b7d9b8ea2480","target":"graph","created_at":"2026-05-18T04:29:07Z","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":"Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their evolution and final fate, and decides upon whether they form black holes (with normal mass or with intermediate mass) or explode as a pair instability supernova. In the present paper, we discuss the evolution of very massive stars and we present a convenient evolution recipe that can be implemented in a gravitational N-body code to study the dynamics of dense massi","authors_text":"D. Vanbeveren, H. Belkus, J. Van Bever","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T14:40:23Z","title":"The evolution of very massive stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701334","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:a8b82b8ab5e7ed9d755f5051237059764b335b97fc524edfc80e57d46a80e0b5","target":"record","created_at":"2026-05-18T04:29:07Z","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":"12f5be269a7a901a303a0770a63e7e354754132754abe2c065a14d36b8b51f34","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T14:40:23Z","title_canon_sha256":"b9bdf36d04a9ba58d26c28036a5a53a5a5e57cb2a50d342183a9bf7e95e8f78f"},"schema_version":"1.0","source":{"id":"astro-ph/0701334","kind":"arxiv","version":1}},"canonical_sha256":"4abdbf096642f0c4bd18355d736be937e2194c27c2bba0ede12ee7cd0965a5ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4abdbf096642f0c4bd18355d736be937e2194c27c2bba0ede12ee7cd0965a5ee","first_computed_at":"2026-05-18T04:29:07.438557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:07.438557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C/x+NxH3/3JlNgzE8Gtw2bJPNtTtf8wIjjYfyi+N8WKpZuSR1OUxzuAR9ssyvEahLq4G71SujQpg3uX7o5tYAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:07.439493Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0701334","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8b82b8ab5e7ed9d755f5051237059764b335b97fc524edfc80e57d46a80e0b5","sha256:61fd7d9cb7a9b10b8cc2a15f25ddbccce53c8e56d46aa594bdf9b7d9b8ea2480"],"state_sha256":"bf070cbc4e6f1438b550c6bf1fdb683613feb46e23be27972df5b690768d84f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pOZ9IGdakvmAw0uUeyvvBMF2a+VvMrptC00613TrOIa/myjr7Mifl6gKjw9DWI5NvAOaEomKr4ElnhhYen11Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T02:36:25.206068Z","bundle_sha256":"095570f62b810530594de9e6129ae476f576204746cb3bc0d6269a23ca839982"}}