{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QX7XWMYARIATCRSM7A6WL3SGFQ","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":"5c8c438172cc003763f09967c53e7e88ae1f3e595b1f64262243d7c5f271e94b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-07T05:45:57Z","title_canon_sha256":"41e5c5dad20e1af8c8679eebba5e9d7703e3ab1efc848871f73a763a1680342a"},"schema_version":"1.0","source":{"id":"1305.1413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.1413","created_at":"2026-05-18T01:50:05Z"},{"alias_kind":"arxiv_version","alias_value":"1305.1413v1","created_at":"2026-05-18T01:50:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.1413","created_at":"2026-05-18T01:50:05Z"},{"alias_kind":"pith_short_12","alias_value":"QX7XWMYARIAT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QX7XWMYARIATCRSM","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QX7XWMYA","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:db4a493c7a770941df7c974da51d98fdf6553533e0544c1adebec012806e6f8b","target":"graph","created_at":"2026-05-18T01:50:05Z","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":"The majority of stars form in star clusters and many are thought to have planetary companions. We demonstrate that multi-planet systems are prone to instabilities as a result of frequent stellar encounters in these star clusters much more than single-planet systems. The cumulative effect of close and distant encounters on these planetary systems are investigated using Monte Carlo scattering experiments. We consider two types of planetary configurations orbiting Sun-like stars: (i) five Jupiter-mass planets in the semi-major axis range 1-42 AU orbiting a Solar mass star, with orbits that are in","authors_text":"M.B.N. Kouwenhoven, R. Spurzem, W. Hao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-07T05:45:57Z","title":"The dynamical evolution of multi-planet systems in open clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1413","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":"sha256:3106ae6021fdc97303396f7ab387394d16d1b5f891c491adf2bf4e0664433c84","target":"record","created_at":"2026-05-18T01:50:05Z","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":"5c8c438172cc003763f09967c53e7e88ae1f3e595b1f64262243d7c5f271e94b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-05-07T05:45:57Z","title_canon_sha256":"41e5c5dad20e1af8c8679eebba5e9d7703e3ab1efc848871f73a763a1680342a"},"schema_version":"1.0","source":{"id":"1305.1413","kind":"arxiv","version":1}},"canonical_sha256":"85ff7b33008a0131464cf83d65ee462c27916cf95c35472b5ee404ba0a83d319","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85ff7b33008a0131464cf83d65ee462c27916cf95c35472b5ee404ba0a83d319","first_computed_at":"2026-05-18T01:50:05.335092Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:05.335092Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gq+QT1fL7UTyJ0ekz97DZQ8Y5fCT2diB82pud2A+/+F2TybCQs/ZLC5X8ydfvcS0lsM0vzi6toHcwlz9PCYiAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:05.335607Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.1413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3106ae6021fdc97303396f7ab387394d16d1b5f891c491adf2bf4e0664433c84","sha256:db4a493c7a770941df7c974da51d98fdf6553533e0544c1adebec012806e6f8b"],"state_sha256":"b8d753a09428b17ae68ad8efdcaa59d1d35eb7e917a904996500bf5df6b3f961"}