{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZLTSUW7T7UMZRIDUUELS5MFDTI","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":"4de303223b1df2d70bb8562c40a5c9345200246cae362f65188922a44b30c7bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-29T15:55:22Z","title_canon_sha256":"4a3341cc40e7f108a9d7c9358d12a3b1eb1f776f61ba3ceec14a11643a963724"},"schema_version":"1.0","source":{"id":"1301.6959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6959","created_at":"2026-05-18T03:35:03Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6959v1","created_at":"2026-05-18T03:35:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6959","created_at":"2026-05-18T03:35:03Z"},{"alias_kind":"pith_short_12","alias_value":"ZLTSUW7T7UMZ","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZLTSUW7T7UMZRIDU","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZLTSUW7T","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:46b469b7bf2a75c7169ba3541e66f94d753a5f57b74219014b8eb0c001b977dc","target":"graph","created_at":"2026-05-18T03:35:03Z","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":"Massive stars are known to have a high multiplicity, with examples of higher order multiples among the nearest and best studied objects. In this paper we study hierarchical multiple systems (an inner binary as a component of a wider binary) of massive stars in a clustered environment, in which a system with a size of 100--1000 au will undergo many close encounters during the short lifetime of a massive star. Using two types of N-body experiment we determine the post-formation collision probabilities of these massive hierarchies. We find that, depending on the specifics of the environment, the ","authors_text":"Ian A. Bonnell, Nickolas Moeckel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-29T15:55:22Z","title":"Primordial triples and collisions of massive stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6959","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":"sha256:35f94d37b8a701602ad956af1b3806750b5546bc4d39121cf87a598429d1d9c1","target":"record","created_at":"2026-05-18T03:35:03Z","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":"4de303223b1df2d70bb8562c40a5c9345200246cae362f65188922a44b30c7bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-29T15:55:22Z","title_canon_sha256":"4a3341cc40e7f108a9d7c9358d12a3b1eb1f776f61ba3ceec14a11643a963724"},"schema_version":"1.0","source":{"id":"1301.6959","kind":"arxiv","version":1}},"canonical_sha256":"cae72a5bf3fd1998a074a1172eb0a39a34a666b4b791086969ad035d75eccba4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cae72a5bf3fd1998a074a1172eb0a39a34a666b4b791086969ad035d75eccba4","first_computed_at":"2026-05-18T03:35:03.038114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:03.038114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nA4Q9q+eg3ehCQXtgUu9bVL9Qu7DsMUxilmy3qlns9x3KglwgtnRewyX0Do8o1Y3n43+ygTNXTSaKJ6VsFgtBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:03.038657Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35f94d37b8a701602ad956af1b3806750b5546bc4d39121cf87a598429d1d9c1","sha256:46b469b7bf2a75c7169ba3541e66f94d753a5f57b74219014b8eb0c001b977dc"],"state_sha256":"c27794255cc1c8e6280e708a4b3c5b886ffa96f63deb2e87c46ff8ad02499e99"}