{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:BXO6JEBD75IPGMWFA2GUVY54C5","short_pith_number":"pith:BXO6JEBD","canonical_record":{"source":{"id":"1502.02663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-09T21:00:13Z","cross_cats_sorted":[],"title_canon_sha256":"45a7848d522aa34e314f346b6a8d3a948d040df1da27ffef7e4f56130431d11c","abstract_canon_sha256":"a83b07a3a086a171f3b7258e2b21612265dca95ea7854763f5877eb2cc28adce"},"schema_version":"1.0"},"canonical_sha256":"0ddde49023ff50f332c5068d4ae3bc17511d363f6a3b5ac815cb2548d5244bc4","source":{"kind":"arxiv","id":"1502.02663","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02663","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02663v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02663","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"BXO6JEBD75IP","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BXO6JEBD75IPGMWF","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BXO6JEBD","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:BXO6JEBD75IPGMWFA2GUVY54C5","target":"record","payload":{"canonical_record":{"source":{"id":"1502.02663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-09T21:00:13Z","cross_cats_sorted":[],"title_canon_sha256":"45a7848d522aa34e314f346b6a8d3a948d040df1da27ffef7e4f56130431d11c","abstract_canon_sha256":"a83b07a3a086a171f3b7258e2b21612265dca95ea7854763f5877eb2cc28adce"},"schema_version":"1.0"},"canonical_sha256":"0ddde49023ff50f332c5068d4ae3bc17511d363f6a3b5ac815cb2548d5244bc4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:04.110370Z","signature_b64":"ceLVVTfd7BBTFkKrGBc3slZPpFxtc7piuEafvJFAGjLbmbUvFhLEX9/MP7o/ycTqakJ5WAjdmA38u6w27vURAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ddde49023ff50f332c5068d4ae3bc17511d363f6a3b5ac815cb2548d5244bc4","last_reissued_at":"2026-05-18T01:41:04.109605Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:04.109605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.02663","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sbnzEK+aM3liECE7v53XHfUqMvG6lMQmy1Qa16n3uAHt4G1ZuExU8iNaPnSvz8HdDfMgAnVCmQWQbQE8MCc/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T05:08:20.792057Z"},"content_sha256":"3e5dea1267a331b8a3c5668b2101cdb9e4b7aaf3ca2e1e849ac352c99f72f3f6","schema_version":"1.0","event_id":"sha256:3e5dea1267a331b8a3c5668b2101cdb9e4b7aaf3ca2e1e849ac352c99f72f3f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:BXO6JEBD75IPGMWFA2GUVY54C5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron star natal kicks and the long-term survival of star clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anna Lisa Varri, Douglas C. Heggie, Filippo Contenta","submitted_at":"2015-02-09T21:00:13Z","abstract_excerpt":"We investigate the dynamical evolution of a star cluster in an external tidal field by using N-body simulations, with focus on the effects of the presence or absence of neutron star natal velocity kicks.We show that, even if neutron stars typically represent less than 2% of the total bound mass of a star cluster, their primordial kinematic properties may affect the lifetime of the system by up to almost a factor of four. We interpret this result in the light of two known modes of star cluster dissolution, dominated by either early stellar evolution mass loss or two-body relaxation. The competi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02663","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXqaj8tHy1BVMc6hHB6W6xfiYcmHSI5qQo0tYosD6+MH3vRCUkvF4fnZPmXKK1X3NBAKxCSSfXbojIhFFyywBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T05:08:20.792720Z"},"content_sha256":"31302754bdaf1ee3e26f08a6b26f0876ac8547b3eb2d245a3b4bbe48a0594ef6","schema_version":"1.0","event_id":"sha256:31302754bdaf1ee3e26f08a6b26f0876ac8547b3eb2d245a3b4bbe48a0594ef6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BXO6JEBD75IPGMWFA2GUVY54C5/bundle.json","state_url":"https://pith.science/pith/BXO6JEBD75IPGMWFA2GUVY54C5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BXO6JEBD75IPGMWFA2GUVY54C5/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":"2026-06-09T05:08:20Z","links":{"resolver":"https://pith.science/pith/BXO6JEBD75IPGMWFA2GUVY54C5","bundle":"https://pith.science/pith/BXO6JEBD75IPGMWFA2GUVY54C5/bundle.json","state":"https://pith.science/pith/BXO6JEBD75IPGMWFA2GUVY54C5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BXO6JEBD75IPGMWFA2GUVY54C5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:BXO6JEBD75IPGMWFA2GUVY54C5","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":"a83b07a3a086a171f3b7258e2b21612265dca95ea7854763f5877eb2cc28adce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-09T21:00:13Z","title_canon_sha256":"45a7848d522aa34e314f346b6a8d3a948d040df1da27ffef7e4f56130431d11c"},"schema_version":"1.0","source":{"id":"1502.02663","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02663","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02663v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02663","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"BXO6JEBD75IP","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BXO6JEBD75IPGMWF","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BXO6JEBD","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:31302754bdaf1ee3e26f08a6b26f0876ac8547b3eb2d245a3b4bbe48a0594ef6","target":"graph","created_at":"2026-05-18T01:41:04Z","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":"We investigate the dynamical evolution of a star cluster in an external tidal field by using N-body simulations, with focus on the effects of the presence or absence of neutron star natal velocity kicks.We show that, even if neutron stars typically represent less than 2% of the total bound mass of a star cluster, their primordial kinematic properties may affect the lifetime of the system by up to almost a factor of four. We interpret this result in the light of two known modes of star cluster dissolution, dominated by either early stellar evolution mass loss or two-body relaxation. The competi","authors_text":"Anna Lisa Varri, Douglas C. Heggie, Filippo Contenta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-09T21:00:13Z","title":"Neutron star natal kicks and the long-term survival of star clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02663","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":"sha256:3e5dea1267a331b8a3c5668b2101cdb9e4b7aaf3ca2e1e849ac352c99f72f3f6","target":"record","created_at":"2026-05-18T01:41:04Z","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":"a83b07a3a086a171f3b7258e2b21612265dca95ea7854763f5877eb2cc28adce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-09T21:00:13Z","title_canon_sha256":"45a7848d522aa34e314f346b6a8d3a948d040df1da27ffef7e4f56130431d11c"},"schema_version":"1.0","source":{"id":"1502.02663","kind":"arxiv","version":1}},"canonical_sha256":"0ddde49023ff50f332c5068d4ae3bc17511d363f6a3b5ac815cb2548d5244bc4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ddde49023ff50f332c5068d4ae3bc17511d363f6a3b5ac815cb2548d5244bc4","first_computed_at":"2026-05-18T01:41:04.109605Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:04.109605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ceLVVTfd7BBTFkKrGBc3slZPpFxtc7piuEafvJFAGjLbmbUvFhLEX9/MP7o/ycTqakJ5WAjdmA38u6w27vURAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:04.110370Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.02663","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e5dea1267a331b8a3c5668b2101cdb9e4b7aaf3ca2e1e849ac352c99f72f3f6","sha256:31302754bdaf1ee3e26f08a6b26f0876ac8547b3eb2d245a3b4bbe48a0594ef6"],"state_sha256":"b350447c7a2914d2210b5fe6e755696b133ce12927fb2d4107fa38fd79223e2d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Hxl7+gmrerKsTeWdPZYrkSrXOuodzoQva5OpqeSLH/jpFA4Gwzd+iFN9PdviLPLjO/TuxkmyzKviEwEwqTCCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T05:08:20.796267Z","bundle_sha256":"7698b9aaa3a9aa11300004e7c57f8b7d4ff716f71afe67d210822045ac54fc72"}}